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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PRECHEUR ET RENETTE SOC
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PRECHEUR ET RENETTE SOC
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Publication date
Application filed by PRECHEUR ET RENETTE SOCfiledCriticalPRECHEUR ET RENETTE SOC
Application grantedgrantedCritical
Publication of FR349316ApublicationCriticalpatent/FR349316A/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)
FR349316D1904-12-211904-12-21Dispositif de mise au point pour appareil photographique pliant
ExpiredFR349316A
(fr)