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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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.)
Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NVfiledCriticalPhilips Gloeilampenfabrieken NV
Application grantedgrantedCritical
Publication of FR808117ApublicationCriticalpatent/FR808117A/fr
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
G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
G03C5/08—Photoprinting; Processes and means for preventing photoprinting
G03C5/10—Reflex-printing; Photoprinting using fluorescent or phosphorescent means
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR808117D1935-07-291936-07-15Procédé d'obtention de contrastes par voie photochimique, particulièrement applicable à la reproduction des documents
ExpiredFR808117A
(fr)