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FR852989A Expired / Lapsed FR ⏱️ 0.0 years remaining

Improvements to high-power transmitting tubes, operating on high voltage and intended for the production of short waves

Assignee: Compagnie Generale de Radiologie SA
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Filing: 1938-10-26
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Granted: 1940-03-07
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Expires: 1958-10-26
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Abstract

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Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-10-27 15:37
CPC Classifications
H; H01; H01J; H01J21/00; H01J21/02; H01J21/06; H01J21/065; H01J19/00; H01J19/28; H01J19/32; H01J19/34; H01J2893/00; H01J2893/0001; H01J2893/0002; H01J2893/0003

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