FR830477A
Expired / Lapsed
FR
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Improvements to visible or invisible ray distribution systems
Assignee: Jean Bonnemain
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Filing: 1937-12-07
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Granted: 1938-08-01
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Expires: 1957-12-07
Abstract
No abstract record available.
Inventors
- 👤 Jean Bonnemain
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-03 20:24
CPC Classifications
F; F21; F21V; F21V7/00; F21V7/04
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References Cited (Backward Citations)
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