FR58105E
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements to the process for producing cathodes for electron tubes
Assignee: Thales SA
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Filing: 1948-03-22
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Granted: 1953-09-21
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Expires: 1968-03-22
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 17:21
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/02; H01J9/04; H01J9/06
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