FR762121A
Expired / Lapsed
FR
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Method and device for protection against noise
Assignee: Henri Coanda
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Filing: 1932-12-31
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Granted: 1934-04-04
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Expires: 1952-12-31
Abstract
No abstract record available.
Inventors
- 👤 Henri Coanda
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-24 09:46
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/16; G10K11/175; G10K11/178; G10K11/1787; G10K11/17873; G10K11/1785; G10K2210/00; G10K2210/30; G10K2210/301; G10K2210/3011; G10K2210/321; G10K2210/3217; G10K2210/50; G10K2210/508
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