FR821611A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements to aspheric lenses, mirrors and analogs and other precision optical devices
Assignee: Combined Optical Industries Ltd
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Filing: 1937-05-07
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Granted: 1937-12-09
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Expires: 1957-05-07
Abstract
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Inventors
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Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-06 06:38
CPC Classifications
B; B29; B29D; B29D11/00; B29D11/00009; B29D11/00019; B29D11/00269; B29D11/00932
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