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LOUIS RATIER
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LOUIS RATIER
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Application filed by LOUIS RATIERfiledCriticalLOUIS RATIER
Application grantedgrantedCritical
Publication of FR522998ApublicationCriticalpatent/FR522998A/fr
G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
G03C5/29—Development processes or agents therefor
G03C5/315—Tanning development
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means
(AREA)
Paper
(AREA)
FR522998A1919-06-161919-06-16Perfectionnements apportés au procédé dit "ozobrome" pour l'obtention d'épreuves photographiques pigmentaires
ExpiredFR522998A
(fr)