FR759552A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Recorder-style heaters, to eliminate parasitic vibrations in sound recording
Assignee: Johnson
•
Filing: 1932-11-04
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Granted: 1934-02-05
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Expires: 1952-11-04
Abstract
No abstract record available.
Inventors
- 👤 Johnson
- 👤 Ivan Serginsky
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-25 01:53
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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