FR42378E
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Process for the elimination, in a microphone reception unit of the disturbance brought by the parasitic noises inside the environment, while allowing the capture of a specially sought-after wave phenomenon
Assignee: Louis-Auguste-Marie Laboureur
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Filing: 1932-03-11
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Granted: 1933-07-11
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Expires: 1952-03-11
Abstract
No abstract record available.
Inventors
- 👤 Louis-Auguste-Marie Laboureur
- 👤 Raymond Dubois
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-01 00:54
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/52; G01S7/523; G01S7/526; G01S1/00; G01S1/72
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