FR854199A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Device for controlling the focus of cinematographic and photographic cameras
Assignee: Vve Etienne Charles Er Jourjon
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Filing: 1938-12-22
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Granted: 1940-04-06
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Expires: 1958-12-22
Abstract
No abstract record available.
Inventors
- 👤 Vve Etienne Charles Er Jourjon
- 👤 Maurice Dalotel
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-26 21:43
CPC Classifications
G; G03; G03B; G03B19/00; G03B19/18
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References Cited (Backward Citations)
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