FR615836A
Expired / Lapsed
FR
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Phonograph needle
Assignee: Armin Gottfried Helfer
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Filing: 1926-05-08
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Granted: 1927-01-17
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Expires: 1946-05-08
Abstract
No abstract record available.
Inventors
- 👤 Armin Gottfried Helfer
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-03 13:10
CPC Classifications
G; G11; G11B; G11B3/00; G11B3/44; G11B3/46; G11B3/48
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References Cited (Backward Citations)
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