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FR1201682A
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Improvements to sound emitting devices
Assignee: Joseph-Henri Leon
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Filing: 1958-07-09
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Granted: 1960-01-04
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Expires: 1978-07-09
Abstract
No abstract record available.
Inventors
- 👤 Joseph-Henri Leon
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-31 11:45
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/20; H04R1/22; H04R1/28; H04R1/2869; H04R1/2884; H04R1/2888
Claims Analysis
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References Cited (Backward Citations)
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