EP2143654A1 - Packaging bag - Google Patents
Packaging bag Download PDFInfo
- Publication number
- EP2143654A1 EP2143654A1 EP09009068A EP09009068A EP2143654A1 EP 2143654 A1 EP2143654 A1 EP 2143654A1 EP 09009068 A EP09009068 A EP 09009068A EP 09009068 A EP09009068 A EP 09009068A EP 2143654 A1 EP2143654 A1 EP 2143654A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bag
- strip
- front wall
- rear wall
- adhesive strip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/04—Articles or materials wholly enclosed in single sheets or wrapper blanks
- B65D75/20—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks doubled around contents and having their opposed free margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
Definitions
- the invention relates to a bag, in particular a food packaging bag, having a front wall and a rear wall and an adhesive strip applied to at least one inside of the front wall or rear wall, wherein the adhesive strip is covered with a protective strip in the unlocked state of the bag and side welds extending from a lower end of the bag extend up to the protective strip.
- bags are used to package goods. Depending on the packaged goods, different requirements are placed on the bags. Essential for the transport here is the closure of the bag.
- the invention relates to bags that are provided with an adhesive strip, so that the bag walls for closing a Elnhellö réelle the bag are glued together.
- the adhesive strips are usually provided with a protective strip, which is removed before bonding the walls or tape together.
- the bags are made of plastic, paper or plastic paper.
- a sealable by means of an adhesive tape bag is in the DE 29 37 240 A1 described.
- the bag is made of plastic and is formed from a front wall and a rear wall, wherein the fold line is off-center, so that the rear wall is formed longer than the front wall.
- the projecting rear wall forms the closure cap of the bag, wherein on the inside of the rear wall and on the front side of the front wall, an adhesive strip is applied, both provided with a Schutzfolle. After removal of the protective film, the flap formed from the rear wall is hinged against the front of the front wall for closing the bag.
- a generic bag is in the GB 2 145 997 A described.
- the bag has a front wall and a rear wall formed from a folded web and having side welds and wherein the front wall and rear wall may have a substantially equal length.
- an adhesive strip is applied to the inside of the rear wall of the bag at the side opposite the folding edge of the bag.
- the adhesive strip is covered with a protective foil, wherein the protective strip must be removed before closing the bag, so that the front wall and the rear wall can be glued to seal the bag.
- a problem that arises with such bags is that while the bags allow safe packaging and transporting of the introduced goods, but the bags can not transport the packaged goods liquid-tight.
- the bags allow safe packaging and transporting of the introduced goods, but the bags can not transport the packaged goods liquid-tight.
- the bags allow safe packaging and transporting of the introduced goods, but the bags can not transport the packaged goods liquid-tight.
- the bags can not transport the packaged goods liquid-tight.
- the bags it is possible that, for example in the case of frozen products, water is present in the bag.
- the bag is liquid-tight sealable.
- the welds extend from the fold edge to the adhesive strip.
- the adhesive strip is covered with a trap strip prior to the welding of the bag sacs, so that the bag walls can be laid over one another and welded.
- the protective strip not only covers the adhesive strip, but also areas of the side walls to be welded, so that the side walls in a region immediately adjacent to the adhesive strip are not weldable.
- the object of the invention is to develop a bag which encloses the packaged liquid-tight and which is also inexpensive to produce with low design means and.
- the object according to the invention is achieved in that the protective strip covering the adhesive layer has a recess in the region of the weld, so that the weld at least partially reaches as far as the adhesive strip.
- the side weld thus reaches at least as far as the adhesive strip, so that after a removal of the protective strip, the bag can be closed in a liquid-tight manner by means of an assembly of the front side and the back side of the bag.
- the recess in the protective strip may be such that the weld extends completely into the adhesive strip, but preferably the recess begins in a central region of the weld and extends linearly and / or with arcuate and / or circular portions towards the lateral end of the bag.
- this offers the advantage that the protective strip is more easily pulled out between the front wall and the rear wall of the bag and, on the other hand, has the advantage that it is easier to open the bag.
- FIG. 1 In the FIG. 1 are schernatically reproduced the individual process steps for producing a bag 1 according to the invention.
- the numbers I, II, III and IV show different production states.
- a hole 3 is punched in the middle of the film.
- the flat web 2 is a plastic film or a paper web or a single-sided or double-sided coated paper web.
- a recess in the form of a punched-6, 7 is introduced rapportgenau in the protective strip. Rapport exact here means that the punches 6, 7 are introduced exactly to the width of the finished bag in the protective strip.
- the glue trace is 4, 5 applied to the web 2 and the hole 3 punched.
- the protective strip 8, 9 provided with the recess 6, 7 is applied to the adhesive strip.
- the recess 6, 7 is in the rough schematic representation of the method steps a part of the glue track 4, 5 frel.
- Process step III shows the flat web 2 folded on both sides, so that a front wall and a rear wall are formed.
- the front wall here is the side folded onto the flat web. It can be clearly seen that a portion of the adhesive strip 4, 5 is exposed through the recess 6, 7, so that a introduced in step IV weld to form the rare welds 10, 11 extends into the region of the adhesive strip 4, 5.
- the flat web 2 is formed from a paper web, then at least the opposite sides of the front wall and rear wall are coated with a thermoplastic material, so that a welding of the side walls 6, 7 is made possible.
- the arrow P indicates the production direction. Finally, there is a longitudinal and transverse cutting of the welded film web 2 to form the bag according to the invention.
- FIG. 2 shows a plan view of a front side of a packaging bag 1 according to the invention with an arcuate recess 12 in the protective strip 13.
- a hole 15 is stamped, which makes it possible to easily grab the protective strip 13 and from the located on the rear wall 14 Glue track 16 to solve.
- the front wall 17 covers the rear wall 14 completely in this embodiment. That is, the flat sheet 2 has been folded up to its center line 18.
- FIG. 5 is shown in principle.
- FIG. 3 is a linear formation of the recess 22 in the protective strip 23 is introduced. It should be noted here that any geometric shape is conceivable that provides the protective strip with a recess, wherein it is essential to the invention that the protective strip 8, 9, 13, 23 is recessed such that the weld 10, 11, 19, 24 to reaches the adhesive strip 4, 5, 16, 25, so that the overlap region 11 is welded.
- FIG. 4 An advantageous embodiment of a bag 40 is in the FIG. 4 played.
- the recess 26 which, as already described, have any shapes or can even reach over their entire width B as far as the adhesive strip 27, it is possible according to the invention to design the recess 26 in such a way that the weld 28 extends into the region of the adhesive strip 27 extends.
- the recess 26 in this case has a circular segment-like shape, the krelssegment shame shape 26 is achieved by a circular section punched into the protective strip 29 before feeding and sticking to the adhesive strip 27.
- FIG. 5 Is a combination of linear sections 31, 32 introduced as a recess in the protective strip 33.
- the dashed line 34 indicates in principle that such a cut can also extend into the region of the adhesive strip 35.
- the adhesive strip 35 has a width of 6 to 8 mm and extends over the entire booty width. According to the invention, it is conceivable to extend the adhesive strip 4, 5, 16, 25, 27, 35 into a region of approximately 2 mm from the weld seam 10, 11, 28, 36 into a region of approximately 2 mm in the adhesive strip.
- the bag 50 according to the FIG. 5 has a front wall 37 and a rear wall 38.
- the front wall 37 does not completely cover the rear wall 38. This offers the advantage that the packaging bag 50 is easier to open. It is conceivable according to the invention, the area of the front wall 37 extends beyond the weld 36 out to fold against the front wall, thus to achieve even easier opening of the packaging bag and at the same time to be able to solve the protective strip 33 from the adhesive strip 35 easier.
- a protective strip 33 a paper strip 33 is used as a protective strip 33.
- the protective strip 33 isolates the opposing inner sides of the front wall 37 and rear wall 38 against each other, so that a welding of the front wall 37 and rear wall 38 is prevented.
- the packaging bag 1, 20, 30, 40, 50 used for the packaging of food and fish here.
- the packaging bag 1, 20, 30, 40, 50 used for the packaging of food and fish here.
- the packaging bag 1, 20, 30, 40, 50 according to the invention closes the food liquid-tight, so that no liquid can escape.
Abstract
Description
Die Erfindung betrifft einen Beutel, insbesondere einen Verpackungsbeutel für Lebensmittel, mit einer Vorderwand und einer Rückwand und einem auf mindestens einer Innenseite der Vorderwand oder Rückwand aufgebrachten Klebestreifen, wobei der Klebestreifen im unverschlossenen Zustand des Beutels mit einem Schutzstreifen abgedeckt ist und Seitenschweißnähten, die sich von einem unteren Ende des Beutels bis an den Schutzstreifen heran erstrecken.The invention relates to a bag, in particular a food packaging bag, having a front wall and a rear wall and an adhesive strip applied to at least one inside of the front wall or rear wall, wherein the adhesive strip is covered with a protective strip in the unlocked state of the bag and side welds extending from a lower end of the bag extend up to the protective strip.
In vielen Bereichen des täglichen Lebens werden Beutel zum Verpacken von Gütern eingesetzt. Je nach verpacktem Gut werden hierbei unterschiedliche Anforderungen an die Beutel gestellt. Wesentlich für den Transport ist hierbei der Verschluss des Beutels. Die Erfindung bezieht sich auf Beutel, die mit einem Klebestreifen versehen sind, so dass die Beutelwände zum Verschließen einer Elnfüllöffnung des Beutels mit einander verklebbar sind. Zur Lagerung und zur leichteren Handhabung der Beutel sind die Klebestreifen zumeist mit einem Schutzstreifen versehen, der vor dem Verkleben der Wände oder Klebestreifen miteinander entfernt wird. Je nach Elnsatzzweck und Verwendung der Verpackungsbeutel bestehen die Beutel aus Kunststoff, Papier oder aus mit Kunststoff beschiehtetem Papier.In many areas of daily life, bags are used to package goods. Depending on the packaged goods, different requirements are placed on the bags. Essential for the transport here is the closure of the bag. The invention relates to bags that are provided with an adhesive strip, so that the bag walls for closing a Elnfüllöffnung the bag are glued together. For storage and easier handling of the bags, the adhesive strips are usually provided with a protective strip, which is removed before bonding the walls or tape together. Depending on the intended purpose and use of the packaging bag, the bags are made of plastic, paper or plastic paper.
Ein mittels eines Klebestreifens verschließbarer Beutel ist in der
Ein gattungsgemäßer Beutel ist in der
Ein Problem, das sich bei derartigen Beuteln ergibt, ist das, dass die Beutel zwar ein sicheres Verpacken und Transportieren des eingebrachten Gutes ermöglichen, die Beutel das verpackte Gut aber nicht flüssigkeitsdicht transportieren können. Insbesondere in den Fällen, in denen in den Beuteln zum Beispiel Lebensmittel transportiert oder verpackt werden ist es möglich, dass, zum Beispiel bei Gefrierprodukten Wasser Im Beutel vorhanden ist. In diesem Fall Ist es notwendig, dass der Beutel flüssigkeitsdicht verschließbar ist. Gemäß der
Aufgabe der Erfindung ist es, einen Beutel zu entwickeln, der das Verpackungsgut flüssigkeitsdicht einschließt und der darüber hinaus mit geringen konstruktiven Mitteln und kostengünstig herstellbar ist.The object of the invention is to develop a bag which encloses the packaged liquid-tight and which is also inexpensive to produce with low design means and.
Die erfindungsgemäße Aufgabe wird dadurch gelöst, dass der die Klebeschicht abdeckende Schutzstreifen im Bereich der Schweißnaht eine Aussparung aufweist, so dass die Schweißnaht zumindest bereichsweise bis an den Klebestreifen heranreicht. Durch die erfindungegemäße Ausbildung des Schutzstreifens ist nun die Möglichkeit geschaffen, ein Verpackungsgut mit einem mit einem Klebestreifen versehenen Verpackungsbeutel flüssigkeitsdicht einzuschließen. Der aus dem Stand der Technik bekannte Nachteil, dass der Schutzstreifen über den Klebestreifen hinausragt und somit ein vollständiges Verschließen eines Verpackungsbeutels verhindert, ist somit überwunden. Der Schutzstreifen, der zum Beispiel ein Papierstreifen ist, besitzt eine Aussparung, die sich etwa aus einem mittleren Bereich der Schweißnaht heraus in Richtung des Klebestreifens und in Richtung des seitlichen Rands des Beutels erstreckt. Die Seitenschweißnaht reicht somit zumindest bis an den Klebestreifen heran, so dass nach einem Abziehen des Schutzstreifens der Beutel lückenlos mittels eines Zusammenfügens der Vorderseite und der Rückseite des Beutels flüssigkeitsdicht verschließbar ist. Die Aussparung im Schutzstreifen kann dergestalt sein, dass die Schweißnaht vollständig in den Klebestreifen hineinreicht, bevorzugt beginnt die Aussparung aber in einem mittleren Bereich der Schweißnaht und erstreckt sich linear und/oder mit bogenförmigen und/oder kreisförmigen Abschnitten in Richtung des seitlichen Endes des Beutels. Dies bietet einerseits den Vorteil, dass der Schutzstreifen leichter zwischen der Vorderwand und Rückwand des Beutels herausziehbar ist und andererseits den Vorteil, dass ein Öffnen des Beutels leichter möglich ist.The object according to the invention is achieved in that the protective strip covering the adhesive layer has a recess in the region of the weld, so that the weld at least partially reaches as far as the adhesive strip. By erfindungegemäße training of the protective strip, the possibility is now created to include a packaged with a liquid provided with an adhesive packaging bag. The disadvantage known from the prior art that the protective strip protrudes beyond the adhesive strip and thus prevents a complete closing of a packaging bag is thus overcome. The protective strip, which is for example a paper strip, has a recess which extends approximately from a central region of the weld in the direction of the adhesive strip and in the direction of the lateral edge of the bag. The side weld thus reaches at least as far as the adhesive strip, so that after a removal of the protective strip, the bag can be closed in a liquid-tight manner by means of an assembly of the front side and the back side of the bag. The recess in the protective strip may be such that the weld extends completely into the adhesive strip, but preferably the recess begins in a central region of the weld and extends linearly and / or with arcuate and / or circular portions towards the lateral end of the bag. On the one hand, this offers the advantage that the protective strip is more easily pulled out between the front wall and the rear wall of the bag and, on the other hand, has the advantage that it is easier to open the bag.
Ein weiterer Vorteil ergibt sich dann, wenn sich die Schweißnaht bis in einen Bereich des Klebestreifens hineinerstreckt, das heißt, die Aussparung im Schutzstreifen legt einen Teil des Klebestreifens zum Verschweißen der Vorderwand und Rückwand frei, Hierdurch wird eine noch größere Sicherheit in Bezug auf das flüssigkeitsdichte Verschließen des Beutels erreicht.A further advantage arises when the weld extends into a region of the adhesive strip, that is, the recess in the protective strip exposes a portion of the adhesive strip for welding the front wall and rear wall, thereby providing even greater security with respect to the liquid-tight Closing the bag reached.
Nachfolgend wird die Erfindung anhand von Prinzipskizzen an Ausführungsbeispielen näher erläutert, Es zeigt:
- Figur 1
- Eine schematisch aneinander gereihte Abfolge des Ablaufs der ein- zelnen Fertigungsstufen zur herstellung eines erfindungsgemäßen Beutels,
Figur 2- einen Eckbereich eines erfindungsgemäßen Beutels mit einer bogen- förmigen Aussparung im Schutzstreifen,
Figur 3- einen Eckbereich eines erfindungsgemäßen Beutels mit einer linea- ren Aussparung im Schutzstreifen,
Figur 4- einen erfindungsgemäßen Beutel mit einer kreisabschnittsförmigen Aussparung im Schutzstreifen, die bis in den Bereich des Klebestrei- fens reicht und
Figur 5- einen erfindungsgemäßen Beutel mit einer weiteren geometrischen Form als Aussparung im Schutzstreifen, die bis an den Klebestreifen heranreicht und sich entlang des Klebestreifens erstreckt.
- FIG. 1
- A schematic sequence of the sequence of the individual production stages for producing a bag according to the invention,
- FIG. 2
- a corner region of a bag according to the invention with a curved recess in the protective strip,
- FIG. 3
- a corner region of a bag according to the invention with a linear recess in the protective strip,
- FIG. 4
- a bag according to the invention with a circular section-shaped recess in the protective strip, which extends into the region of the adhesive strip and
- FIG. 5
- a bag according to the invention with a further geometric shape as a recess in the protective strip, which extends to the adhesive strip and extends along the adhesive strip.
In der
Bevor in einem nächsten Verfahrensschritt der Schutzstreifen auf die Bahn 2 aufgebracht wird, wird rapportgenau eine Aussparung in Form einer Einstanzung 6, 7 in den Schutzstreifen eingebracht. Rapportgenau bedeutet hierbei, dass die Einstanzungen 6, 7 exakt zur Breite der fertigen Beutel in den Schutzstreifen eingebracht werden. In dem mit I bezeichneten Verfahrensschritt ist lediglich die Leimspur 4, 5 auf die Bahn 2 aufgetragen und das Loch 3 eingestanzt. In dem mit II bezifferten Verfahrensschritt ist der mit der Aussparung 6, 7 versehene Schutzstreifen 8, 9 auf den Klebestreifen aufgebracht. Die Aussparung 6, 7 liegt in der grobschematischen Darstellung der Verfahrensschritte einen Teil der Leimspur 4, 5 frel.Before the protective strip is applied to the
Der Verfahrensschritt III zeigt die beidseitig zusammengefaltete Flachbahn 2, so dass eine Vorderwand und eine Rückwand gebildet ist. Als Vorderwand wird hierbei die auf die Flachbahn gefaltete Seite bezeichnet. Deutlich zu erkennen ist, dass durch die Aussparung 6, 7 ein Teil des Klebestreifens 4, 5 freigelegt wird, so dass eine im Verfahrensschritt IV eingebrachte Schweißnaht, zur Bildung der Seltenschweißnähte 10, 11 bis in den Bereich des Klebestreifens 4, 5 reicht. Wird die Flachbahn 2 aus einer Papierbahn gebildet, so sind zumindest die sich gegenüberliegenden Seiten der Vorderwand und Rückwand mit einem thermoplastischen Kunststoff beschichtet, so dass ein Verschweißen der Seitenwände 6, 7 ermöglicht wird.Process step III shows the
Der Pfeil P zeigt die Produktionsrichtung an. Abschließend erfolgt ein Längs- und Querschneiden der verschweißten Folienbahn 2 zur Bildung der erfindungsgemäßen Beutel.The arrow P indicates the production direction. Finally, there is a longitudinal and transverse cutting of the welded
Die
Die Verschweißung der Vorderwand und Rückwand reicht von einem Rand 21 des Beutels 20 bis in einen Bereich des Beutels 20 hinein. Eine übliche Breite B der Schweißnaht liegt bei circa 10 mm. Wie deutlich zu erkennen ist, überragt der Schutzstreifen 13 die Leimspur 16 in Richtung der Schweißnaht 19. Diese Überlappung 11 führt bei Beuteln gemäß dem Stand der Technik dazu, dass eine Lücke zwischen der Schweißnaht und dem Klebestreifen entsteht, so dass die herkömmlichen Beutel nicht flüssigkeitsdicht sind. Durch die erfindungsgemäße und in der
In der
Eine vorteilhafte Ausführungsform eines Beutels 40 ist in der
In der
Der Beutel 50 gemäß der
Im einer vortellhaften Verwendung des erfindungsgemäßen Verpackungsbeutels 1, 20, 30, 40, 50 wird der Verpackungsbeutel 1, 20, 30, 40, 50 für die Verpackung von Lebensmitteln und hier von Fisch verwendet. Zumeist in eisgekühlter Fisch hat den Nachteil, dass das am Fisch haftende Eis in der Verpackung 1, 20, 30, 40, 50 schmilzt und das geschmolzene Eis als Wasser aus dem Verpackungsmittel 1, 20. 30, 40, 50 austreten könnte. Der erfindungsgemäße Verpackungsbeutel 1, 20, 30, 40, 50 verschließt das Lebensmittel flüsslgkeitsdicht, so dass keine Flüssigkeit austreten kann.In a vortellhaft use of the
Claims (14)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008032582 | 2008-07-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2143654A1 true EP2143654A1 (en) | 2010-01-13 |
EP2143654B1 EP2143654B1 (en) | 2012-06-27 |
Family
ID=41027504
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20090009068 Not-in-force EP2143654B1 (en) | 2008-07-11 | 2009-07-10 | Packaging bag |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2143654B1 (en) |
DE (1) | DE102009032807A1 (en) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB245997A (en) | 1925-05-11 | 1926-01-21 | Yoshitoshi Noishiki | An electrical instrument for medical treatment |
DE2937240A1 (en) | 1978-09-29 | 1980-04-17 | Franko Plastics Ltd | SECURITY BAG |
GB2145997A (en) | 1983-09-02 | 1985-04-11 | Interpoly Ltd | Tamperproof bag |
US5045040A (en) * | 1988-04-28 | 1991-09-03 | Uniflex, Inc. | Envelope closure seal and method |
US6012844A (en) * | 1999-02-16 | 2000-01-11 | Huseman; David C. | Selectively closeable plastic film bag |
US20040105600A1 (en) * | 2002-11-25 | 2004-06-03 | Floyd Thomas M | Multi-wall bag |
FR2885353A1 (en) * | 2005-05-04 | 2006-11-10 | Decomatic Sa Sa | Plastic sealed cover for e.g. silver product or pharmaceutical |
FR2908745A1 (en) * | 2006-11-16 | 2008-05-23 | Alpem Soc Par Actions Simplifi | PREFORMED PACKAGING BAG, IN PARTICULAR FOR FOOD PRODUCTS. |
-
2009
- 2009-07-10 EP EP20090009068 patent/EP2143654B1/en not_active Not-in-force
- 2009-07-10 DE DE102009032807A patent/DE102009032807A1/en not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB245997A (en) | 1925-05-11 | 1926-01-21 | Yoshitoshi Noishiki | An electrical instrument for medical treatment |
DE2937240A1 (en) | 1978-09-29 | 1980-04-17 | Franko Plastics Ltd | SECURITY BAG |
GB2145997A (en) | 1983-09-02 | 1985-04-11 | Interpoly Ltd | Tamperproof bag |
US5045040A (en) * | 1988-04-28 | 1991-09-03 | Uniflex, Inc. | Envelope closure seal and method |
US6012844A (en) * | 1999-02-16 | 2000-01-11 | Huseman; David C. | Selectively closeable plastic film bag |
US20040105600A1 (en) * | 2002-11-25 | 2004-06-03 | Floyd Thomas M | Multi-wall bag |
FR2885353A1 (en) * | 2005-05-04 | 2006-11-10 | Decomatic Sa Sa | Plastic sealed cover for e.g. silver product or pharmaceutical |
FR2908745A1 (en) * | 2006-11-16 | 2008-05-23 | Alpem Soc Par Actions Simplifi | PREFORMED PACKAGING BAG, IN PARTICULAR FOR FOOD PRODUCTS. |
Also Published As
Publication number | Publication date |
---|---|
EP2143654B1 (en) | 2012-06-27 |
DE102009032807A1 (en) | 2010-03-11 |
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