FR565867A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements made to air propeller drive units, and hence to air navigation devices
Assignee: Raoul Pateras Pescara
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Filing: 1923-05-07
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Granted: 1924-02-05
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Expires: 1943-05-07
Abstract
No abstract record available.
Inventors
- 👤 Raoul Pateras Pescara
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-23 18:13
CPC Classifications
B; B64; B64D; B64D35/00
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