DE647533C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Arrangement for the protection of electrical machines, apparatus and devices against fault current when using a sum and difference current transformer and an alternating current auxiliary voltage
Assignee: ELEK ZITAETS ACT GES VORM W LA
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Filing: 1930-10-15
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Granted: 1937-07-07
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Expires: 1950-10-15
Abstract
No abstract record available.
Inventors
- 👤 Dr-Ing W Buetow
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-30 23:45
CPC Classifications
H; H02; H02H; H02H3/00; H02H3/16; H02H3/17
Claims Analysis
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References Cited (Backward Citations)
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