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http://www.google.com/patents/US2340227?utm_source=gb-gplus-share
Patent US2340227 - FLUORESCENT GLOW SHEET AND THE
FLUORESCENT GLOW SHEET AND THE
Alfred R. Russell et al
› Overview
Abstract
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Description
Claims
Patent number
: 2340227
Filing date
: May 15, 1942
Issue date
: Jan 25, 1944
Inventors
:
Alfred R. Russell
,
Alfred R. Russell
Current U.S. Classification
:
40/542
;
101/32
;
264/21
;
428/913
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Referenced by
Citing Patent
Filing date
Issue date
Original Assignee
Title
US5599048
Mar 6, 1995
Feb 4, 1997
Phosphorescent book
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