FR1097804A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Gyroscopic helicopter
Assignee: Oswald-Honore-Marcel Papillon
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Filing: 1954-04-01
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Granted: 1955-07-11
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Expires: 1974-04-01
Abstract
No abstract record available.
Inventors
- 👤 Oswald-Honore-Marcel Papillon
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-23 05:20
CPC Classifications
B; B64; B64C; B64C27/00
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References Cited (Backward Citations)
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