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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Berning & Co
Original Assignee
Berning & Co
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Filing date
Publication date
Application filed by Berning & CofiledCriticalBerning & Co
Application grantedgrantedCritical
Publication of FR853295ApublicationCriticalpatent/FR853295A/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
G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
G03B13/18—Focusing aids
G03B13/20—Rangefinders coupled with focusing arrangements, e.g. adjustment of rangefinder automatically focusing camera
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR853295D1939-04-211939-04-21Dispositif de réglage des télémètres pour objectifs photographiques interchangeables
ExpiredFR853295A
(fr)