FR1241240A
Expired / Lapsed
FR
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Multi-tuned rigid loudspeaker
Assignee: Robert Boisseau
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Filing: 1959-08-05
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Granted: 1960-09-16
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Expires: 1979-08-05
Abstract
No abstract record available.
Inventors
- 👤 Robert Boisseau
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-09 08:19
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/20; H04R1/22; H04R1/28; H04R1/2807; H04R1/2853; H04R1/2857; H04R1/32; H04R1/34; H04R1/345
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References Cited (Backward Citations)
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