Patent DE813169C successfully refreshed from Google Patents.
DE813169C
Expired / Lapsed
DE
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Device for determining the transmission rate of sound recording devices
Assignee: Siemens and Halske AG
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Filing: 1948-10-02
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Granted: 1951-09-10
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Expires: 1968-10-02
Abstract
No abstract record available.
Inventors
- 👤 Jobst Dr Goessinger
- 👤 Heinz Dr Koschel
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-05 16:31
CPC Classifications
H; H04; H04R; H04R29/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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