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.)
Agfa Gevaert NV
Original Assignee
Agfa AG
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 Agfa AGfiledCriticalAgfa AG
Priority to FR821973ApriorityCriticalpatent/FR1251769A/fr
Application grantedgrantedCritical
Publication of FR1251769ApublicationCriticalpatent/FR1251769A/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
G03B27/58—Baseboards, masking frames, or other holders for the sensitive material
G03B27/587—Handling photosensitive webs
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR821973A1960-03-211960-03-21Dispositif de variation du pas d'avancement du papier sensible sur une machine à tirer les pellicules
ExpiredFR1251769A
(fr)
Appareil automatique de reproduction et d'agrandissement à dispositif pour agir sur la gradation du papier de tirage par une exposition supplémentaire en dessous du seuil