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PETOT FRERES ETS
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PETOT FRERES ETS
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Application filed by PETOT FRERES ETSfiledCriticalPETOT FRERES ETS
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Publication of FR756984ApublicationCriticalpatent/FR756984A/fr
G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
G02B23/16—Housings; Caps; Mountings; Supports, e.g. with counterweight
G02B23/18—Housings; Caps; Mountings; Supports, e.g. with counterweight for binocular arrangements
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Physics & Mathematics
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Astronomy & Astrophysics
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General Physics & Mathematics
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Optics & Photonics
(AREA)
FR756984D1933-06-141933-06-14Bonnette-oeillère orientable pour jumelles à écartement variable et autres instruments d'optique
ExpiredFR756984A
(fr)