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Publication of FR359102ApublicationCriticalpatent/FR359102A/fr
G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
G02B23/14—Viewfinders
Landscapes
Physics & Mathematics
(AREA)
Astronomy & Astrophysics
(AREA)
General Physics & Mathematics
(AREA)
Optics & Photonics
(AREA)
FR359102D1905-11-031905-11-03Viseur-niveleur pour appareils photographiques et de nivellement
ExpiredFR359102A
(fr)