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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Zeiss Ikon AG
Original Assignee
Zeiss Ikon AG
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Publication date
Application filed by Zeiss Ikon AGfiledCriticalZeiss Ikon AG
Application grantedgrantedCritical
Publication of FR841944ApublicationCriticalpatent/FR841944A/en
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
G03B13/02—Viewfinders
G03B13/06—Viewfinders with lenses with or without reflectors
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR841944D1937-09-061938-08-09
Viewfinder for photographic and cinematographic cameras
ExpiredFR841944A
(en)