FR842376A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Combined arrangement of loudspeakers for sound and similar cinemas
Assignee: CIE RADIO CINEMA
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Filing: 1938-02-11
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Granted: 1939-06-12
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Expires: 1958-02-11
Abstract
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Inventors
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Bibliographic Details
Application Number
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Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-03 10:38
CPC Classifications
A; A63; A63J; A63J5/00; A63J5/10
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