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http://www.google.com.au/patents/US930818?utm_source=gb-gplus-share
Patent US930818 - CHARLES PETER WESTHAUSER
CHARLES PETER WESTHAUSER
U. P. WBSTHAUSER et al
› Overview
Abstract
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Description
Claims
Patent number
: 930818
Filing date
: 11 Jul 1908
Issue date
: 1909
Inventors
:
U. P. WBSTHAUSER
,
U. P. WBSTHAUSER
Current U.S. Classification
:
248/272
View patent at USPTO
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Drawings
Drawings