DE683525C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Device for sparkless opening and closing of electrical direct current circuits
Assignee: Siemens Schuckertwerke AG
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Filing: 1937-12-07
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Granted: 1939-11-08
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Expires: 1957-12-07
Abstract
No abstract record available.
Inventors
- 👤 Dipl-Ing Walter Zycha
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-23 09:56
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/59; H01H33/596
Claims Analysis
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References Cited (Backward Citations)
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