DE720091C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Hollow propeller blades made of wood
Assignee: J H Schaefer & Co
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Filing: 1939-03-09
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Granted: 1942-04-24
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Expires: 1959-03-09
Abstract
No abstract record available.
Inventors
- 👤 Erich Czech
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-30 11:30
CPC Classifications
B; B64; B64C; B64C11/00; B64C11/16; B64C11/20; B64C11/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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