FR775060A
Expired / Lapsed
FR
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Improvements to optical devices used for photography and color projection and other applications
Assignee: William Ernest Clifton
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Filing: 1934-06-26
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Granted: 1934-12-19
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Expires: 1954-06-26
Abstract
No abstract record available.
Inventors
- 👤 William Ernest Clifton
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-27 12:42
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/10; G02B27/1006; G02B27/1013; G02B27/14; G02B27/149
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