FR791938A
Expired / Lapsed
FR
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Method for influencing the tone of photographic developing images
Assignee: IG Farbenindustrie AG
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Filing: 1935-07-01
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Granted: 1935-12-19
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Expires: 1955-07-01
Abstract
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Inventors
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Bibliographic Details
Application Number
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Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-06 17:17
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/26; G03C5/29; G03C5/305
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