FR1070544A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Horizontal traction system for helicopters, particularly applicable to gyroscopic rotary helicopters
Assignee: Pierre-Antoine Hees
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Filing: 1952-10-31
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Granted: 1954-07-28
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Expires: 1972-10-31
Abstract
No abstract record available.
Inventors
- 👤 Pierre-Antoine Hees
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-27 12:23
CPC Classifications
B; B64; B64C; B64C39/00; B64C39/001; F; F02; F02C; F02C7/00; F02C7/04
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