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FR724176A
Expired / Lapsed
FR
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Improvements to cinematographic devices and their optical compensators
Assignee: Hellmuth Herrmann
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Filing: 1931-10-08
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Granted: 1932-04-22
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Expires: 1951-10-08
Abstract
No abstract record available.
Inventors
- 👤 Hellmuth Herrmann
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-26 02:38
CPC Classifications
G; G03; G03B; G03B41/00; G03B41/02; G03B41/04; G03B41/08
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Total Claims: 0
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References Cited (Backward Citations)
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