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http://www.google.com/patents/US3846135?utm_source=gb-gplus-share
Patent US3846135 - LIGHT-SENSITIVE PHOTOGRAPHIC MATERIAL WITH INCREASED SENSITIVITY TO LIGHT
LIGHT-SENSITIVE PHOTOGRAPHIC MATERIAL WITH INCREASED SENSITIVITY TO LIGHT
Erhard Hellmig et al
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Abstract
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Description
Claims
Patent number
: 3846135
Filing date
: Apr 2, 1971
Issue date
: Nov 5, 1974
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