FR933834A
Expired / Lapsed
FR
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Improvements to optical devices
Assignee: Hans Leopold Simon
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Filing: 1946-09-24
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Granted: 1948-05-03
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Expires: 1966-09-24
Abstract
No abstract record available.
Inventors
- 👤 Hans Leopold Simon
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-03 17:19
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/02; G02B27/022; G02B27/024; G02B30/00; G02B30/50; G02B30/56
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