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Publication of FR848851ApublicationCriticalpatent/FR848851A/fr
G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
G03B27/00—Photographic printing apparatus
G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
G03B27/52—Details
G03B27/62—Holders for the original
G03B27/6271—Holders for the original in enlargers
G03B27/6278—Handling single frame negatives
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR848851D1938-01-281939-01-14Châssis porte-négatif pour agrandisseurs photographiques
ExpiredFR848851A
(fr)