FR920241A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Variable resistance
Assignee: Koninklijke Philips NV
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Filing: 1946-01-16
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Granted: 1947-04-01
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Expires: 1966-01-16
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
2026-10-28 19:48
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/30; H01C10/32
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