FR653868A - Procédé pour la préservation contre les déchirures des photocalques et, en général de tous plans et documents quelconques en papier
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Procédé pour la préservation contre les déchirures des photocalques et, en général de tous plans et documents quelconques en papier
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G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
G03C11/00—Auxiliary processes in photography
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FR653868D1928-05-041928-05-04Procédé pour la préservation contre les déchirures des photocalques et, en général de tous plans et documents quelconques en papier
ExpiredFR653868A
(fr)