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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Interfot Ges Stratmann & Co
Original Assignee
Interfot Ges Stratmann & Co
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Filing date
Publication date
Application filed by Interfot Ges Stratmann & CofiledCriticalInterfot Ges Stratmann & Co
Application grantedgrantedCritical
Publication of FR898677ApublicationCriticalpatent/FR898677A/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
G03B27/02—Exposure apparatus for contact printing
G03B27/14—Details
G03B27/18—Maintaining or producing contact pressure between original and light-sensitive material
G03B27/22—Maintaining or producing contact pressure between original and light-sensitive material by stretching over a curved surface
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR898677D1942-10-261943-10-11
Device for making prints or photographic reproductions of documents
ExpiredFR898677A
(en)