Patent DE664759C successfully refreshed from Google Patents.
DE664759C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Device for magnetic sound recording and reproduction
Assignee: AEG AG
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Filing: 1935-07-27
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Granted: 1938-09-03
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Expires: 1955-07-27
Abstract
No abstract record available.
Inventors
- 👤 Dipl-Ing Willi Patzschke
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-06 14:19
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/46; G11B15/48; G11B15/1883; G11B15/22; G11B15/43; G11B15/44; G11B5/00; G11B5/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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