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Alsacienne De Construction D A
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Alsacienne De Construction D A
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Application filed by Alsacienne De Construction D AfiledCriticalAlsacienne De Construction D A
Application grantedgrantedCritical
Publication of FR936109ApublicationCriticalpatent/FR936109A/en
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
G03B27/326—Enlargers
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR936109D1946-11-141946-11-14
Improvements to photographic enlargers
ExpiredFR936109A
(en)