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Patent DE693239C successfully refreshed from Google Patents.
DE693239C
Expired / Lapsed
DE
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Air-cooled dry rectifier column with cooling disks
Assignee: Siemens Schuckertwerke AG
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Filing: 1937-11-04
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Granted: 1940-07-06
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Expires: 1957-11-04
Abstract
No abstract record available.
Inventors
- 👤 Henri Hoffmann
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-23 10:55
CPC Classifications
H; H10; H10W; H10W90/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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