FR440299A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Automatic diaphragm control
Assignee: GABRIEL CROMER
•
Filing: 1912-01-27
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Granted: 1912-07-06
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Expires: 1932-01-27
Abstract
No abstract record available.
Inventors
- 👤 Gabriel Cromer
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-27 12:19
CPC Classifications
G; G03; G03B; G03B9/00; G03B9/08
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References Cited (Backward Citations)
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