CH227380A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Method for stereophonic sound transmission with the interposition of a magnetic multi-channel recording.
Assignee: Hans Joachim Von Braunmuehl
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Filing: 1942-07-24
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Granted: —
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Expires: 1962-07-24
Abstract
No abstract record available.
Inventors
- 👤 Hans Joachim Von Braunmuehl
- 👤 Walter Weber
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-11-06 15:00
CPC Classifications
B; B23; B23B; B23B27/00; B23B27/22; B65; B65D; B65D9/00; B65D9/32; B65D9/34; E; E01; E01B; E01B7/00; E01B7/24; F; F41; F41A; F41A23/00; F41A23/26; G; G11; G11B; G11B5/00; G11B5/02; G11B5/027; G11B5/03; G11B5/127; G11B5/29; H; H01; H01H; H01H11/00; H01H11/04; H01H11/048; H04; H04R; H04R7/00; H04R7/02; H04R7/12; H04R7/122; H04R9/00; H04R9/06; H05; H05B; H05B3/00; H05B3/40; H05B3/42; H05B3/48
Claims Analysis
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References Cited (Backward Citations)
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