FR538133A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Torpedo propulsion or the like improvements
Assignee: Sydney Undercliffe Hardcastle
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Filing: 1921-07-11
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Granted: 1922-06-03
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Expires: 1941-07-11
Abstract
No abstract record available.
Inventors
- 👤 Sydney Undercliffe Hardcastle
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-26 07:00
CPC Classifications
F; F42; F42B; F42B19/00; F42B19/12; F42B19/14; F42B19/20
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References Cited (Backward Citations)
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