FR719022A
Expired / Lapsed
FR
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Improvements in methods and devices for modifying the length of phonograms for the reproduction of sounds
Assignee: KUCHENMEISTER S INTERNATIONALE
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Filing: 1931-06-23
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Granted: 1932-02-01
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Expires: 1951-06-23
Abstract
No abstract record available.
Inventors
- 👤 B Freund
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-03 09:38
CPC Classifications
G; G01; G01D; G01D9/00; G01D9/02; G01D9/04; G01D9/06; G11; G11B; G11B7/00
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