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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Machines Chambon SA
Original Assignee
Machines Chambon SA
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Filing date
Publication date
Application filed by Machines Chambon SAfiledCriticalMachines Chambon SA
Application grantedgrantedCritical
Publication of FR1217363ApublicationCriticalpatent/FR1217363A/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
G03B27/68—Introducing or correcting distortion, e.g. in connection with oblique projection
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR784052A1958-01-131959-01-13Procédé et appareil pour la production de copies d'originaux par photographie
ExpiredFR1217363A
(fr)