FR869794A
Expired / Lapsed
FR
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Support for rod cathodes of direct-heated electron ray tubes, and more specifically braun tubes, with a cap bearing the emission layer holding them on the ceramic part
Assignee: Licentia Patent Verwaltungs GmbH
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Filing: 1941-02-06
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Granted: 1942-02-16
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Expires: 1961-02-06
Abstract
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Bibliographic Details
Application Number
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Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-03 09:59
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/48; H01J29/484; H01J29/485
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