Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of BE652355ApublicationCriticalpatent/BE652355A/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
G03B27/326—Enlargers
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
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Light Sources And Details Of Projection-Printing Devices
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Procede pour la reproduction d'images a partir d'un support d'images transparent sur un support photosensible et dispositif pour la mise en oeuvre de ce procede