FR851374A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Hydrofoil or other self-stabilizing navigation device
Assignee: Oskar Tietjens
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Filing: 1939-03-09
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Granted: 1940-01-08
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Expires: 1959-03-09
Abstract
No abstract record available.
Inventors
- 👤 Oskar Tietjens
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-04 14:22
CPC Classifications
B; B63; B63B; B63B1/00; B63B1/16; B63B1/24
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References Cited (Backward Citations)
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