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.)
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RAYCOL BRITISH CORP Ltd
Original Assignee
RAYCOL BRITISH CORP Ltd
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Filing date
Publication date
Application filed by RAYCOL BRITISH CORP LtdfiledCriticalRAYCOL BRITISH CORP Ltd
Application grantedgrantedCritical
Publication of FR710438ApublicationCriticalpatent/FR710438A/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)
FR710438D1930-08-091931-02-03Perfectionnements aux appareils de prise de vues cinématographiques
ExpiredFR710438A
(fr)