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Patent FR41374E successfully refreshed from Google Patents.
FR41374E
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Improvements to sound amplifiers
Assignee: Helene Kanders
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Filing: 1931-08-17
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Granted: 1933-01-07
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Expires: 1951-08-17
Abstract
No abstract record available.
Inventors
- 👤 Helene Kanders
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-04 18:58
CPC Classifications
G; G10; G10K; G10K13/00
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Total Claims: 0
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