FR896214A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Air intake valve for divers
Assignee: Otto Heinrich Drager
•
Filing: 1943-07-07
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Granted: 1945-02-15
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Expires: 1963-07-07
Abstract
No abstract record available.
Inventors
- 👤 Otto Heinrich Drager
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-05 03:11
CPC Classifications
B; B63; B63C; B63C11/00; B63C11/02; B63C11/10; A; A62; A62B; A62B9/00; A62B9/02
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References Cited (Backward Citations)
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