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http://www.google.ca/patents/US2153724?utm_source=gb-gplus-share
Patent US2153724 - CLOSED SPIRAL PAPER CLIP
CLOSED SPIRAL PAPER CLIP
Howard D. Randall et al
› Overview
Abstract
Drawings
Description
Claims
Patent number
: 2153724
Filing date
: 10 Aug 1936
Issue date
: 1939
Inventors
:
Howard D. Randall
,
Howard D. Randall
Current U.S. Classification
:
24/547
;
24/67.9
;
D19/65
View patent at USPTO
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Referenced by
Citing Patent
Filing date
Issue date
Original Assignee
Title
US4597139
27 Jan 1984
1 Jul 1986
Large capacity paper clip
USD416285
29 Jun 1998
9 Nov 1999
Spiral hook fabric clip
USD452881
16 May 2001
8 Jan 2002
Vinsonic Industrial Co., Ltd.
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Drawings
Drawings
