Patent FR731860A successfully refreshed from Google Patents.
FR731860A
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Assignee: Societe Francaise Radio Electrique
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Filing: 1931-04-13
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Granted: 1932-09-09
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Expires: 1951-04-13
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-10 02:03
CPC Classifications
H; H04; H04R; H04R9/00; H04R9/02; H04R9/04
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References Cited (Backward Citations)
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