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Patent FR580663A successfully refreshed from Google Patents.
FR580663A
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FR
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Automatic light projection device usable in daylight
Assignee: Jehan De Montangon
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Filing: 1923-07-27
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Granted: 1924-11-13
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Expires: 1943-07-27
Abstract
No abstract record available.
Inventors
- 👤 Jehan De Montangon
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-30 14:27
CPC Classifications
G; G03; G03B; G03B1/00; G03B1/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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