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FR908709A Expired / Lapsed FR ⏱️ 0.0 years remaining

New baffle system for dynamic loudspeakers

Assignee: Pierre-Paul Vera
•
Filing: 1942-03-31
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Granted: 1946-04-17
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Expires: 1962-03-31
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Abstract

No abstract record available.

Inventors

  • 👤 Pierre-Paul Vera

Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-10-25 08:59
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/20; H04R1/22; H04R1/28; H04R1/2807; H04R1/2815; H04R1/2819

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