FR1126904A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements in the construction of loudspeakers
Assignee: O S A E
•
Filing: 1950-10-10
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Granted: 1956-12-04
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Expires: 1970-10-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-25 12:35
CPC Classifications
H; H04; H04R; H04R9/00; H04R9/02; H04R9/04; H04R9/045; H04R9/025
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