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Application filed by Forsch Zur Unterstuetzung DerfiledCriticalForsch Zur Unterstuetzung Der
Publication of CH305441ApublicationCriticalpatent/CH305441A/de
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
G03B27/02—Exposure apparatus for contact printing
G03B27/14—Details
G03B27/30—Details adapted to be combined with processing apparatus
G03B27/303—Gas processing
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Physics & Mathematics
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General Physics & Mathematics
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CH305441D1952-08-221952-08-22Apparat zur Herstellung von Photokopien.
CH305441A
(de)