Patent US5809271A successfully refreshed from Google Patents.
Patent FR862452A successfully refreshed from Google Patents.
FR862452A
Expired / Lapsed
FR
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Binaural acoustic receiver device and its applications
Assignee: Anciens Etablissements Barbier Benard and Turenne SA
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Filing: 1939-08-23
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Granted: 1941-03-07
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Expires: 1959-08-23
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-01 12:57
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/72
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