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http://www.google.com.au/patents/US1528142?utm_source=gb-gplus-share
Patent US1528142 - LETTERING PEN
LETTERING PEN
EDGAR BOURQUENT et al
› Overview
Abstract
Drawings
Description
Claims
Patent number
: 1528142
Filing date
: 31 Dec 1924
Issue date
: 3 Mar 1925
Inventors
:
EDGAR BOURQUENT
,
EDGAR BOURQUENT
Current U.S. Classification
:
401/259
;
33/23.04
View patent at USPTO
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Referenced by
Citing Patent
Filing date
Issue date
Original Assignee
Title
US4269529
13 Nov 1978
26 May 1981
Pen with articulate handle
US4652164
19 Feb 1985
24 Mar 1987
Kishizuka Kikai Kogyo Kabushiki Kaisha
Device to prevent the inadvertent coming-apart of the parts of a draftsman's ink writing instrument
Drawings
Drawings
