FR826056A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Rigid face mask with device for making calls
Assignee: Marcel Adrien Armand Albert
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Filing: 1937-08-27
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Granted: 1938-03-22
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Expires: 1957-08-27
Abstract
No abstract record available.
Inventors
- 👤 Marcel Adrien Armand Albert
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-31 15:43
CPC Classifications
A; A62; A62B; A62B18/00; A62B18/08
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