FR525591A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Automatic switch with two conjugate electromagnets
Assignee: PAUL STEPHANE BILLON
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Filing: 1920-10-05
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Granted: 1921-09-24
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Expires: 1940-10-05
Abstract
No abstract record available.
Inventors
- 👤 Paul-Stephane Billon
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-29 13:15
CPC Classifications
H; H01; H01H; H01H43/00; H01H43/30
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