FR838828A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Self-propelled propeller helicopter
Assignee: Salles Pierre Max Raoul
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Filing: 1938-06-03
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Granted: 1939-03-16
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Expires: 1958-06-03
Abstract
No abstract record available.
Inventors
- 👤 Salles Pierre Max Raoul
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-28 14:55
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/04; B64C27/12; B64C27/16; B64C27/18
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References Cited (Backward Citations)
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