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Patent DE538563C successfully refreshed from Google Patents.
DE538563C
Expired / Lapsed
DE
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Safety device for electrical signal boxes
Assignee: Vereinigte Eisenbahn Signalwerke GmbH
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Filing: —
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Granted: 1931-11-14
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Expires: 1948-11-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-25 18:26
CPC Classifications
B; B61; B61L; B61L7/00; B61L7/06; B61L7/08; B61L7/10; B61L7/103
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