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
Priority to FR854739ApriorityCriticalpatent/FR1290922A/fr
Application grantedgrantedCritical
Publication of FR1290922ApublicationCriticalpatent/FR1290922A/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
G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR854739A1961-03-061961-03-06Dispositif pour la mise au point d'objectifs photographiques ou cinématographiques
ExpiredFR1290922A
(fr)