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FR804473A Expired / Lapsed FR ⏱️ 0.0 years remaining

Improvements to chromogenic developers

Assignee: Kodak Pathe SA
•
Filing: 1936-02-27
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Granted: 1936-10-24
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Expires: 1956-02-27
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Abstract

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Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-11-01 22:08
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/32; G03C7/34; G03C7/346; G03C7/407; G03C7/413; G03C7/4136

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