FR1006126A - Perfectionnements apportés aux appareils pour le tirage de copies photographiques, notamment pour le tirage de microfilms positifs
- Google Patents
Perfectionnements apportés aux appareils pour le tirage de copies photographiques, notamment pour le tirage de microfilms positifs
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.)
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 filedfiledCritical
Application grantedgrantedCritical
Publication of FR1006126ApublicationCriticalpatent/FR1006126A/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
G03B27/02—Exposure apparatus for contact printing
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR1006126D1947-11-191947-11-19Perfectionnements apportés aux appareils pour le tirage de copies photographiques, notamment pour le tirage de microfilms positifs
ExpiredFR1006126A
(fr)