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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ALFRED RIVIERE
Original Assignee
ALFRED RIVIERE
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Filing date
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Application filed by ALFRED RIVIEREfiledCriticalALFRED RIVIERE
Application grantedgrantedCritical
Publication of FR449594ApublicationCriticalpatent/FR449594A/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
G03B3/02—Focusing arrangements of general interest for cameras, projectors or printers moving lens along baseboard
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR449594D1912-10-141912-10-14Bascule universelle pour objectifs photographiques
ExpiredFR449594A
(fr)