Patent US3997341A successfully refreshed from Google Patents.
Patent DE740130C successfully refreshed from Google Patents.
DE740130C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Device for determining the frequency characteristics of networks and for bridge balancing
Assignee: ERICH PFEIFER DIPL ING
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Filing: 1938-07-27
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Granted: 1943-10-13
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Expires: 1958-07-27
Abstract
No abstract record available.
Inventors
- 👤 Dipl-Ing Erich Pfeifer
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-04 16:45
CPC Classifications
G; G01; G01R; G01R27/00; G01R27/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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