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Patent US2883902 - OPPENHEIMER
OPPENHEIMER
J. OPPENHEIMER et al
› Overview
Abstract
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Description
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Patent number
: 2883902
Filing date
: Oct 14, 1954
Issue date
: Apr 28, 1959
Inventors
:
J. OPPENHEIMER
,
J. OPPENHEIMER
Current U.S. Classification
:
348/722
;
348/E05.023
View patent at USPTO
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Jan 16, 1996
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