FR54921E
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements in the construction of radiators for cooling the anodes of vacuum tubes
Assignee: Societe Francaise Radio Electrique
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Filing: 1946-08-09
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Granted: 1951-04-30
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Expires: 1966-08-09
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
2026-11-05 03:23
CPC Classifications
H; H01; H01J; H01J19/00; H01J19/28; H01J19/32; H01J19/36; H01J2893/00; H01J2893/0001; H01J2893/0012; H01J2893/0027
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