Patent FR708180A successfully refreshed from Google Patents.
FR708180A
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Projection apparatus device
Assignee: OPTIQUE SOC GEN
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Filing: 1930-12-20
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Granted: 1931-07-21
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Expires: 1950-12-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-08 19:27
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/10; G02B27/1066; G02B27/12; G02B27/123
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