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http://www.google.co.uk/patents/US1235826?utm_source=gb-gplus-share
Patent US1235826 - CHANGEABLE EXHIBITOR
CHANGEABLE EXHIBITOR
W. MCKEAN et al
› Overview
Abstract
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Description
Claims
Patent number
: 1235826
Filing date
: 28 Dec 1916
Issue date
: 7 Aug 1917
Inventors
:
W. MCKEAN
,
W. MCKEAN
Current U.S. Classification
:
40/495
View patent at USPTO
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Drawings
Drawings
