FR402540A
Expired / Lapsed
FR
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Device used to attenuate or suppress the perception of noise
Assignee: Individual
•
Filing: 1909-04-29
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Granted: 1909-10-11
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Expires: 1929-04-29
Abstract
No abstract record available.
Inventors
- 👤 Wladimir De Bouimistrow
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-01 15:48
CPC Classifications
A; A61; A61F; A61F11/00; A61F11/06; A61F11/08; A61F11/12; A61F9/00; A61F9/02; A61F9/029
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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