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http://www.google.com.au/patents/US1176313?utm_source=gb-gplus-share
Patent US1176313 - TRANSPARENT SCREEN
TRANSPARENT SCREEN
AUGTTST HERMAN PITJND et al
Overview
Abstract
Drawings
Description
Claims
Patent number
: 1176313
Filing date
: 9 Mar 1915
Issue date
: 21 Mar 1916
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