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Patent FR913655A successfully refreshed from Google Patents.
FR913655A
Expired / Lapsed
FR
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Improvements to electrical sound reproducing devices such as radio receivers and phonographs
Assignee: Jean-Adolphe Dereux
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Filing: 1945-03-22
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Granted: 1946-09-17
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Expires: 1965-03-22
Abstract
No abstract record available.
Inventors
- 👤 Jean-Adolphe Dereux
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-25 16:46
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/20; H04R1/22; H04R1/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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