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http://www.google.com.au/patents/US2732775?utm_source=gb-gplus-share
Patent US2732775 - CONTINUOUS DIRECT ELECTROPHOTOGRAPHIC RECORDER
CONTINUOUS DIRECT ELECTROPHOTOGRAPHIC RECORDER
Overview
Abstract
Drawings
Description
Claims
Patent number
: 2732775
Filing date
: 11 Feb 1953
Issue date
: 31 Jan 1956
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