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FR595688A Expired / Lapsed FR ⏱️ 0.0 years remaining

Helicopter with semi-automatic stability and braked descent

Assignee: Etienne Oehmichen
•
Filing: 1924-06-24
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Granted: 1925-10-07
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Expires: 1944-06-24
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Abstract

No abstract record available.

Inventors

  • 👤 Etienne Oehmichen

Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-11-07 11:27
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/20

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