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.)
Publication of BE388390ApublicationCriticalpatent/BE388390A/xx
H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
H01H50/643—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rotating or pivoting movement
H01H50/644—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rotating or pivoting movement having more than one rotating or pivoting part
G—PHYSICS
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
G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
G03B7/04—Control effected by hand adjustment of a member that senses indication of a pointer of a built- in light-sensitive device, e.g. by restoring point to a fixed associated reference mark