FR733697A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Safety device for high-voltage lighting of electric railway cars
Assignee: CIE DU CHEMIN DE FER METROPOLI
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Filing: 1931-06-24
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Granted: 1932-10-10
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Expires: 1951-06-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
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Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-04 13:40
CPC Classifications
F; F21; F21S; F21S8/00; F21S8/04
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