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http://www.google.sh/patents/US1840557?utm_source=gb-gplus-share
Patent US1840557 - WINIFRED W
WINIFRED W
WINIFRED W. BEACH
› Overview
Abstract
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Description
Claims
Patent number
: 1840557
Filing date
: 14 Mar 1931
Issue date
: 12 Jan 1932
Inventor
:
WINIFRED W. BEACH
Current U.S. Classification
:
2/200.1
;
D02/879
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Referenced by
Citing Patent
Filing date
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Original Assignee
Title
USD571983
17 Oct 2007
1 Jul 2008
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