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Publication of FR574831ApublicationCriticalpatent/FR574831A/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
G03B27/58—Baseboards, masking frames, or other holders for the sensitive material
G03B27/582—Baseboards, easels
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FR574831D1923-12-061923-12-21Appareil pour la reproduction rapide de photographies, avec ajustage constant et automatique du papier sensible au foyer
ExpiredFR574831A
(fr)
Appareil permettant le développement, le fixage et le lavage en plein jour de pellicule ou papier photographiques d'une manière automatique et continue