FR686501A
Expired / Lapsed
FR
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Method for operating independent electric discharge tubes and suitable arrangement for performing this method
Assignee: Koninklijke Philips NV
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Filing: 1929-12-12
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Granted: 1930-07-28
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Expires: 1949-12-12
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
2026-10-23 15:27
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/14; H05B41/16; H05B41/18; H05B41/19
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