DE691150C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Support device for helicopters with expandable impeller arms
Assignee: LUDWIG KORT DIPL ING
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Filing: 1939-01-20
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Granted: 1940-05-17
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Expires: 1959-01-20
Abstract
No abstract record available.
Inventors
- 👤 Dipl-Ing Ludwig Kort
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-04 08:24
CPC Classifications
B; B64; B64C; B64C25/00; B64C25/02; B64C25/04
Claims Analysis
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References Cited (Backward Citations)
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