FR876747A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Telephone apparatus for diving suit
Assignee: Paul-Jules-Louis Durin
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Filing: 1940-09-11
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Granted: 1942-11-16
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Expires: 1960-09-11
Abstract
No abstract record available.
Inventors
- 👤 Paul-Jules-Louis Durin
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-27 23:29
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/02; H04M1/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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