FR595688A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Helicopter with semi-automatic stability and braked descent
Assignee: Etienne Oehmichen
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Filing: 1924-06-24
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Granted: 1925-10-07
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Expires: 1944-06-24
Abstract
No abstract record available.
Inventors
- 👤 Etienne Oehmichen
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-07 11:15
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/20
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