WO1994024683A1 - Push-button switches - Google Patents
Push-button switches Download PDFInfo
- Publication number
- WO1994024683A1 WO1994024683A1 PCT/GB1994/000866 GB9400866W WO9424683A1 WO 1994024683 A1 WO1994024683 A1 WO 1994024683A1 GB 9400866 W GB9400866 W GB 9400866W WO 9424683 A1 WO9424683 A1 WO 9424683A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- push
- button
- switch
- display element
- switch assembly
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/18—Distinguishing marks on switches, e.g. for indicating switch location in the dark; Adaptation of switches to receive distinguishing marks
- H01H9/181—Distinguishing marks on switches, e.g. for indicating switch location in the dark; Adaptation of switches to receive distinguishing marks using a programmable display, e.g. LED or LCD
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2219/00—Legends
- H01H2219/002—Legends replaceable; adaptable
- H01H2219/01—Liquid crystal
- H01H2219/012—Liquid crystal programmable
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2219/00—Legends
- H01H2219/002—Legends replaceable; adaptable
- H01H2219/014—LED
- H01H2219/016—LED programmable
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2219/00—Legends
- H01H2219/036—Light emitting elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2231/00—Applications
- H01H2231/008—Video game
Definitions
- This specification relates to push-button switch devices, and to game machines having push-button switches. It is known for a push-button switch device to incorporate a light on or near the push-button, to indicate (by being off or on) the condition of the switch (e.g. whether it is in the "off” or “on” position) .
- a push-button switch device can be adapted in a new way to help monitor and/or control the electrical and/or electronic system associated with the switch device.
- a push-button switch device having a movable button member and a variable or programmable electronic display element, adapted to display visually at a display location any of a plurality of characters (e.g. numbers and/or letters) , the display element being viewable through or on the button member of the device.
- a plurality of characters e.g. numbers and/or letters
- a push-button switch device comprising a switch body or bezel for securing to a substrate; a push-button member mounted recriprocably movably on or in the body or bezel; an electric switch operable by the movement of the push-button member, and an electronically-controllable variable display element, adapted to display any of a plurality of characters, and viewable at or through an actuating portion of the push-button member.
- the switch body is preferably a housing having a back wall facing a front opening which is occupied by the push ⁇ button member, the push-button member defining a front wall spaced from the back wall.
- the electronic display element may be visible through a transparency or window of the front wall of the push- button member. It may move with the button or, more preferably, is fixed to the switch body e.g. to a back wall as mentioned above.
- the electric switch may also be advantageously fixed to or on the body e.g. to a back wall as mentioned above.
- the electronic display element in the present proposal being capable of displaying characters and in particular letters and/or numerals, gives a new order of flexibility and can therefore be connected so as to indicate not merely the condition of the switch, or the condition of the associated system arising from the condition of the switch, but rather a more generalised status of the associated system.
- the value of indicating such status at the push button resides in the capability of potential influence on that status by use of that push-button.
- a further aspect herein is a machine having an electric/electronic system and at least one push-button device of the type described connected to influence operation of the system by its electrical switch.
- the electronic display element of the push-button device is connected to a status signal source of the system, to indicate at the push-button one or more characters indicative of and variable in dependence on a status of the system.
- a particular embodiment of interest is a game or amusement machine.
- push-button switches are widely used for player interaction.
- a "fruit machine” (a game machine having a display of relatively movable reels bearing respective series of symbols) , for example, typically has any or all of
- buttons for "temporarily holding” individual reels of the display buttons for "nudging” (i.e. incrementally advancing) the reels.
- a machine as referred to in the previous aspect is a game machine and the push ⁇ button switch is for use by a player operating the machine, e.g. for any or all of initiation of, control of, and interaction during, a game routine provided by the electric/electronic system of the machine.
- the status signal source of the machine indicates, either continuously or from time to time, a status of the machine and/or game routine.
- the display element might display the number of game credits available.
- Other uses are e.g. as "hold” or “nudge” buttons for a reels game in which case the element may display whether or not a "hold” or some other feature is available at a given button, or a number of "nudges” available.
- An alternative use is as a stake- adjusting button for a gambling game, the current value of the stake being indicated at the display.
- a single button may have plural functions, e.g. hold and nudge
- the display element may show a character denoting the function currently controlled by and provided at that push button.
- the status signal source will comprise means for deriving from the system, and outputting to the display element, the necessary signal information indicative of the status. By appropriate logic connections, the same display element may receive at different times signals indicative of more than one type of status parameter.
- the changeable element is preferably an LED or LCD display.
- the characters shown may be selected from numbers, letters, or other suitable meaningful symbols.
- Multi-segment displays or dot-matrix displays may be suitable, according to the information to be shown.
- a seven-segment alpha-numeric format, associated with binary-coded-decimal logic, is suitable.
- the display element is preferably viewable through a transparency of the push-button e.g. a transparent cover cap, to protect it.
- a printed circuit board is comprised in a back wall of the housing of the device.
- the display element can be mounted on and connected by this, as may be also the electric switch (typically a microswitch) .
- a light may be provided to illuminate the button member from behind.
- the button member front may incorporate artwork and/or colouring, and this may be provided as a transparency which is thereby backlit.
- a space illuminated by a backlight e.g. a conventional light bulb
- a backlight or plural backlights which may be operable independently from one another e.g. to indicate system status, or to light captions adjacent the display element, may conveniently be mounted on a printed circuit board as mentioned above.
- a printed circuit board as mentioned above, incorporated in the push-button switch device, may carry logic circuitry for converting a status signal from the system into a display signal adapted for the display element.
- Figure 1 shows a first embodiment of push-button switch assembly in exploded perspective
- Figure 2 shows a game machine
- Figure 3 is a plan view of a second embodiment of push-button switch assembly
- Figure 4 is an enlarged top perspective view of an interior cavity of the second embodiment, with the push ⁇ button member removed;
- Figure 5 is a perspective view from beneath showing the switch body of the second embodiment;
- Figure 6 is an exploded top perspective view showing parts of the push-button member of the second embodiment
- Figure 7 is a bottom perspective view showing the assembled push-button member of the second embodiment.
- a push-button switch suitable for a game machine comprises essentially a fixed bezel 1 and a movable push-button 2 mountable therein for reciprocating movement.
- the button 2 is of a flat rectangular shape, and seats substantially within a rectangular cavity 11 of the bezel 1. It consists essentially of a capsule formed by a transparent or translucent top cap or lens cap 21 fitting onto a plunger base 22 which is fast with conventional microswitch components 23, and has a central circular hole 24 for admitting the electric bulb 31 of a conventional switchable backlight 3.
- a printed wiring board 25 Housed in the rectangular cavity formed by the cap and base 21,22 are a printed wiring board 25, a double seven-segment numeric LED display 26 for connection to the terminals of the wiring board 25, and a flat plastics "legend plate” 27, of translucent plastics, having a central rectangular aperture 28.
- a plastics transparency having information and/or coloured designs printed thereon is trapped between the legend plate 27 and the flat top window of the cap 21, in a generally conventional way.
- the LED display 26, connected to the wiring board 25, projects through the central aperture 28 of the legend plate 27 to adjacent the cap 21.
- Wiring from the board 25 leaves the button 2 through a wiring hole 29 ' in the plunger base 22, and passes to below the substrate (not shown) through a cutaway portion 41 of a screw body 4 used to assemble the bezel 1 down onto the substrate, and a corresponding cutaway 12 of the bezel 1 itself.
- Fig. 1 shows the wiring leading to a PCB 5 having signal terminals 30 to control the LED display 26. It will be appreciated that numeric/alpha numeric displays are not the only possibility; alternative display elements could provide a graphic effect.
- Fig. 2 shows an amusement machine of the "fruit machine” type, with a cabinet 6 having a movable reels display 7, credit insertion means 8, actuating button 9 and hold/nudge buttons 10.
- the actuating button 9 is constructed in accordance with Fig. 1. The other mentioned components may be conventional, and their construction need not be described here.
- the LEDs of the actuating button 9 are wired to a PCB of the main machine processor, which among other things stores the number of credits available to the player. This information is output and displayed numerically through the transparent top of the push-button, as seen in the Figure.
- the processor of the machine has an error mode. Should the machine malfunction, the processor self- diagnoses, as far as possible, the nature of the problem and sends an appropriate error code e.g. "E5" or the like, to be displayed on the button 9. This is helpful to a person maintaining or repairing the machine. It will be understood that other information could be displayed (e.g. again through this single push-button) if the machine is switched, e.g. by service personnel, to other modes of non-play operation.
- E5 error code
- push-buttons 10 for reel control could also have corresponding displays e.g. to indicate a number of "nudges" available, or the like.
- Figs. 3 to 7 show a second embodiment.
- a generally rectangular push-button member 102 is mounted in a corresponding rectangular front opening of a bezel 101.
- the bezel 101 is to rest against the front surface of a machine console (not shown) , with a rectangular housing 105 attached to the bezel 101 being recessed down into the console.
- the mounting of the button member 102 is by means of integral rear and front lugs 85,86 (see Figs. 6 and 7); the rear lugs 85 engage in corresponding rear notches 109 in the rear wall 107 of the housing 105 while the front lugs 86 engage in vertically-extended front slots 110 in the front wall 108 of the housing.
- the narrow rear slots 109 hold the rear of the button member 102 to act as a pivot, while the front lugs 86 can ride up and down in the front slots 110 for the button to reciprocate.
- the housing 105 forms a rectangular cavity of plastics material. Integrally formed with its underfloor 106 is a screw-threaded tube 113, conventional as such, for securing the device into a machine housing by conventional means (not shown) , also a socket boss incorporating a multi-pin electrical connection socket 114 (see Fig. 5) . Within the cavity (Fig. 4) a printed circuit board
- PCB printed circuit board
- An LED display chip 140 is connected to and fixed on the PCB 104.
- the chip 140 is a standard seven- segment LED for showing alpha-numeric characters, and is positioned substantially centrally on the PCB.
- An electrical microswitch 142 is fixed on and wired to the PCB to one side of the LED chip 140.
- the movable armature 143 of the microswitch projects upwardly, and is urged upwardly by an internal spring (not shown) of the microswitch.
- standard illumination bulbs 131,132 are positioned. In this embodiment they are stuck to the PCB by an adhesive pad and their terminals connect to the PCB electrically.
- Figs. 6 and 7 show the structure of the push-button member.
- a rectangular cover cap 121 of translucent plastics (which may be coloured) is sized to fit closely into the front opening of the bezel 101. Its front plate 129 is continuous.
- a flexible polymeric sheet (“legend plate”) 127 fits into the cover cap behind its front surface.
- the legend plate 127 is a sheet of coloured plastics, printed to define a central window 128 of unmodified translucency, flanking regions 125 which are opaque, and top and bottom regions 123 which are colour-modified and bear text captions (here "NUDGE” and "BANK”) .
- a partition insert 122 snaps into the cover cap 121 to hold the legend plate 127 in position.
- the insert 122 has side members 122 which engage the cover cap side walls, and transverse partition walls 82 aligned with the boundaries between the colour-modified translucent areas 123,124 of the legend plate 122.
- a switch presser boss 83, with a rubber cushion disc 84 stuck to its underside (see Fig. 7) is formed integrally as an inward projection from one of the side members 81. The relationship of these parts in the assembled push-button 102 can be seen in Fig. 7.
- the lugs 85,86 engage as described previously, the legend plate window 128 is positioned over the LED chip 140, the colour-modified translucent regions 123,124 are superimposed over respective ones of the illumination bulbs 131,132, and the partition walls 82 of the button insert separate the internal housing space so that the illumination of the bulbs 131,132 does not interfere with the LED display.
- the presser boss 83 engages the armature 143 of the microswitch 142, so that pressing the button member 102 operates the microswitch; the microswitch 1 s internal spring keeps the button member 102 up unless pressed, i.e. the lugs 86 at the top of the slots 110.
- the rear surface of the PCB 104 carries logic circuitry, conventional as such, for providing a binary- coded decimal input into the display element 140. This is different from the first embodiment, where the logic circuitry was all provided away from the push-button device as part of the machine processor.
- the multi-pin logic socket 114 co-operates with a corresponding multi-plug from the machine processor, to provide separate electric connections for the microswitch 142, the logic circuitry for the display element 140, and the respective bulbs 131,132.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69413218T DE69413218T2 (en) | 1993-04-22 | 1994-04-22 | KEY SWITCH |
EP94913690A EP0697132B1 (en) | 1993-04-22 | 1994-04-22 | Push-button switches |
JP6522948A JPH08509318A (en) | 1993-04-22 | 1994-04-22 | Push-button switch |
AU65740/94A AU6574094A (en) | 1993-04-22 | 1994-04-22 | Push-button switches |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB939308381A GB9308381D0 (en) | 1993-04-22 | 1993-04-22 | Push-button switches |
GB9308381.4 | 1993-04-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994024683A1 true WO1994024683A1 (en) | 1994-10-27 |
Family
ID=10734321
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1994/000866 WO1994024683A1 (en) | 1993-04-22 | 1994-04-22 | Push-button switches |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0697132B1 (en) |
JP (1) | JPH08509318A (en) |
AU (1) | AU6574094A (en) |
DE (1) | DE69413218T2 (en) |
ES (2) | ES1027701Y (en) |
GB (1) | GB9308381D0 (en) |
WO (1) | WO1994024683A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1069538A2 (en) * | 1999-07-12 | 2001-01-17 | Wms Gaming, Inc. | Button panel system for a gaming device |
EP1074956A1 (en) * | 1999-08-05 | 2001-02-07 | Wms Gaming, Inc. | Gaming device with serial connections |
US6827647B1 (en) | 2000-09-06 | 2004-12-07 | Wms Gaming, Inc. | Gaming machine coin handling system with dedicated local microcontroller |
WO2006067438A1 (en) * | 2004-12-23 | 2006-06-29 | Gamesman Limited | Push button assemblies |
US7137885B1 (en) | 2000-08-10 | 2006-11-21 | Wms Gaming, Inc. | Slot machine reel mechanism with dedicated local microcontroller |
NL1032647C2 (en) * | 2006-10-09 | 2008-04-10 | Suzo Internat Nl B V | Push button assembly. |
US7628692B2 (en) | 2002-08-22 | 2009-12-08 | Igt | Gaming device having an input device with a display device |
US8624141B2 (en) | 2010-09-30 | 2014-01-07 | HAPP Controls, Inc. | Illuminated button assembly |
US20140075379A1 (en) * | 2012-09-11 | 2014-03-13 | Erich Schlaepfer | Direct character display control |
US8932128B2 (en) | 2011-09-26 | 2015-01-13 | Igt | Gaming system, gaming device and method for displaying multiple concurrent games using dynamic focal points |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5215369B2 (en) * | 2010-11-19 | 2013-06-19 | オムロン株式会社 | Push-button switch |
JP5866825B2 (en) | 2011-06-29 | 2016-02-24 | オムロン株式会社 | Switch unit and gaming machine |
JP2016087472A (en) * | 2014-11-04 | 2016-05-23 | 株式会社大一商会 | Game machine |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2542895A3 (en) * | 1983-03-14 | 1984-09-21 | Eaton Corp | MULTI-SWITCH MONOBLOCK DISPLAY PANEL |
EP0232137A2 (en) * | 1986-01-30 | 1987-08-12 | Dowty Electronic Components Limited | Improvements in or relating to relegendable pushbutton switches |
EP0329920A1 (en) * | 1988-02-23 | 1989-08-30 | TSCHUDIN & HEID AG | Push button switch |
FR2673761A1 (en) * | 1991-03-08 | 1992-09-11 | Systemes Audio Frequences | Keyboard with movable keys |
-
1993
- 1993-04-22 GB GB939308381A patent/GB9308381D0/en active Pending
-
1994
- 1994-04-14 ES ES9400999U patent/ES1027701Y/en not_active Expired - Fee Related
- 1994-04-22 JP JP6522948A patent/JPH08509318A/en active Pending
- 1994-04-22 AU AU65740/94A patent/AU6574094A/en not_active Abandoned
- 1994-04-22 ES ES94913690T patent/ES2124403T3/en not_active Expired - Lifetime
- 1994-04-22 WO PCT/GB1994/000866 patent/WO1994024683A1/en active IP Right Grant
- 1994-04-22 EP EP94913690A patent/EP0697132B1/en not_active Expired - Lifetime
- 1994-04-22 DE DE69413218T patent/DE69413218T2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2542895A3 (en) * | 1983-03-14 | 1984-09-21 | Eaton Corp | MULTI-SWITCH MONOBLOCK DISPLAY PANEL |
EP0232137A2 (en) * | 1986-01-30 | 1987-08-12 | Dowty Electronic Components Limited | Improvements in or relating to relegendable pushbutton switches |
EP0329920A1 (en) * | 1988-02-23 | 1989-08-30 | TSCHUDIN & HEID AG | Push button switch |
FR2673761A1 (en) * | 1991-03-08 | 1992-09-11 | Systemes Audio Frequences | Keyboard with movable keys |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1069538A2 (en) * | 1999-07-12 | 2001-01-17 | Wms Gaming, Inc. | Button panel system for a gaming device |
EP1069538A3 (en) * | 1999-07-12 | 2002-02-13 | Wms Gaming, Inc. | Button panel system for a gaming device |
EP1074956A1 (en) * | 1999-08-05 | 2001-02-07 | Wms Gaming, Inc. | Gaming device with serial connections |
US7137885B1 (en) | 2000-08-10 | 2006-11-21 | Wms Gaming, Inc. | Slot machine reel mechanism with dedicated local microcontroller |
US6827647B1 (en) | 2000-09-06 | 2004-12-07 | Wms Gaming, Inc. | Gaming machine coin handling system with dedicated local microcontroller |
US7628692B2 (en) | 2002-08-22 | 2009-12-08 | Igt | Gaming device having an input device with a display device |
WO2006067438A1 (en) * | 2004-12-23 | 2006-06-29 | Gamesman Limited | Push button assemblies |
NL1032647C2 (en) * | 2006-10-09 | 2008-04-10 | Suzo Internat Nl B V | Push button assembly. |
US8624141B2 (en) | 2010-09-30 | 2014-01-07 | HAPP Controls, Inc. | Illuminated button assembly |
US8932128B2 (en) | 2011-09-26 | 2015-01-13 | Igt | Gaming system, gaming device and method for displaying multiple concurrent games using dynamic focal points |
US9286769B2 (en) | 2011-09-26 | 2016-03-15 | Igt | Gaming system, gaming device and method for displaying multiple concurrent games using dynamic focal points |
US9600957B2 (en) | 2011-09-26 | 2017-03-21 | Igt | Gaming system, gaming device and method for displaying multiple concurrent games using dynamic focal points |
US9905081B2 (en) | 2011-09-26 | 2018-02-27 | Igt | Gaming system, gaming device and method for displaying multiple concurrent games using dynamic focal points |
US10152849B2 (en) | 2011-09-26 | 2018-12-11 | Igt | Gaming system, gaming device and method for displaying multiple concurrent games using dynamic focal points |
US10825300B2 (en) | 2011-09-26 | 2020-11-03 | Igt | Gaming system, gaming device and method for displaying multiple concurrent games using dynamic focal points |
US20140075379A1 (en) * | 2012-09-11 | 2014-03-13 | Erich Schlaepfer | Direct character display control |
Also Published As
Publication number | Publication date |
---|---|
ES1027701U (en) | 1994-09-16 |
DE69413218D1 (en) | 1998-10-15 |
ES1027701Y (en) | 1995-03-01 |
JPH08509318A (en) | 1996-10-01 |
GB9308381D0 (en) | 1993-06-09 |
AU6574094A (en) | 1994-11-08 |
DE69413218T2 (en) | 1999-03-04 |
EP0697132A1 (en) | 1996-02-21 |
ES2124403T3 (en) | 1999-02-01 |
EP0697132B1 (en) | 1998-09-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5134505A (en) | Push-button switch with liquid-crystal display | |
EP0697132B1 (en) | Push-button switches | |
US6310308B1 (en) | Compact push-button switch assembly | |
AU2005293311B2 (en) | Push button assembly | |
JPH0614338Y2 (en) | Push button switch display button | |
US6102394A (en) | Button panel system for a gaming device | |
US6140987A (en) | User interface for home automation system | |
US20040118669A1 (en) | Gaming machine illuminated push-button switch | |
KR20060052092A (en) | Operation switch wiring mechanism | |
EP0232137A2 (en) | Improvements in or relating to relegendable pushbutton switches | |
US4501937A (en) | Integral multiswitch display panel | |
JPH09115376A (en) | Operation device for vehicular air conditioner | |
GB2350722A (en) | Illuminatable push-button switch | |
US3573814A (en) | Lighted display units | |
WO2010058208A1 (en) | Amusement machine and push button assembly | |
KR100901307B1 (en) | Inpannel Switch United Cluster | |
JPH024970B2 (en) | ||
GB2310084A (en) | Electrical switches | |
US4373822A (en) | Clock with selective visual alarm indicators | |
JP2973699B2 (en) | Vending machine product selection button | |
GB2465471A (en) | Illuminated push button assembly | |
KR200172740Y1 (en) | Central controllable switch assembly for vehicle | |
JP2002149098A (en) | Display and controller of electric equipment | |
JPH07235777A (en) | Electronic device case structure | |
KR930005638B1 (en) | Knob |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AU GB JP US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
ENP | Entry into the national phase |
Ref country code: US Ref document number: 1995 537711 Date of ref document: 19951022 Kind code of ref document: A Format of ref document f/p: F |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1994913690 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1994913690 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 1994913690 Country of ref document: EP |