Legal status (The legal status 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 status listed.)
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Optique et Precision de Levallois SA
Original Assignee
Optique et Precision de Levallois SA
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Filing date
Publication date
Application filed by Optique et Precision de Levallois SAfiledCriticalOptique et Precision de Levallois SA
Application grantedgrantedCritical
Publication of FR990637ApublicationCriticalpatent/FR990637A/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
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR990637D1944-03-221944-03-22Perfectionnement aux passe-vues pour appareils d'agrandissement photographique
ExpiredFR990637A
(fr)