Patent DE698170C successfully refreshed from Google Patents.
DE698170C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Touch device for alternating current telegraphy
Assignee: Siemens and Halske AG
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Filing: 1938-03-30
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Granted: 1940-11-04
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Expires: 1958-03-30
Abstract
No abstract record available.
Inventors
- 👤 Dipl-Ing Georg Junga
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-04 15:19
CPC Classifications
H; H04; H04L; H04L27/00; H04L27/02; H04L27/04; H03; H03C; H03C1/00; H03C1/52; H03C1/54; H03C1/56; H03C1/58
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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