FR998574A
Expired / Lapsed
FR
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Improvement in variable pitch coaxial propellers
Assignee: Robert Doussain
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Filing: 1945-11-02
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Granted: 1952-01-21
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Expires: 1965-11-02
Abstract
No abstract record available.
Inventors
- 👤 Robert Doussain
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-01 21:11
CPC Classifications
B; B64; B64C; B64C11/00; B64C11/30; B64C11/306
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