FR617873A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Block system for railways
Assignee: Compagnie de Signaux et dEntreprises Electriques SA
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Filing: 1925-11-07
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Granted: 1927-02-26
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Expires: 1945-11-07
Abstract
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Inventors
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Bibliographic Details
Application Number
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Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-31 10:25
CPC Classifications
B; B61; B61L; B61L23/00; B61L23/08; B61L23/14; B61L23/16; B61L23/166
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