FR471612A - Lentille collectrice devant etre intercalée entre deux systèmes redresseurs dans les instruments destinés à l'inspection des corps creux
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Lentille collectrice devant etre intercalée entre deux systèmes redresseurs dans les instruments destinés à l'inspection des corps creux
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ZEISS CARL SOC
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ZEISS CARL SOC
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G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
G02B23/2407—Optical details
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FR471612D1913-05-081914-05-02Lentille collectrice devant etre intercalée entre deux systèmes redresseurs dans les instruments destinés à l'inspection des corps creux
ExpiredFR471612A
(fr)