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FR1070544A Expired / Lapsed FR ⏱️ 0.0 years remaining

Horizontal traction system for helicopters, particularly applicable to gyroscopic rotary helicopters

Assignee: Pierre-Antoine Hees
•
Filing: 1952-10-31
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Granted: 1954-07-28
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Expires: 1972-10-31
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Abstract

No abstract record available.

Inventors

  • 👤 Pierre-Antoine Hees

Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-10-27 15:16
CPC Classifications
B; B64; B64C; B64C39/00; B64C39/001; F; F02; F02C; F02C7/00; F02C7/04

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