Patent US3661921A successfully refreshed from Google Patents.
Patent FR735718A successfully refreshed from Google Patents.
FR735718A
Expired / Lapsed
FR
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Process for preparing and fixing photographic layers obtained with dazosulphonates
Assignee: Philippe Frangialli
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Filing: 1931-07-21
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Granted: 1932-11-14
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Expires: 1951-07-21
Abstract
No abstract record available.
Inventors
- 👤 Philippe Frangialli
- 👤 Robert Lantz
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-06 17:57
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/52; G03C1/56
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References Cited (Backward Citations)
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