Patent US4158751A successfully refreshed from Google Patents.
Patent FR879352A successfully refreshed from Google Patents.
FR879352A
Expired / Lapsed
FR
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electrode for an electric discharge vessel, not intended to be used as an incandescent cathode
Assignee: Telefunken AG
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Filing: 1942-02-17
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Granted: 1943-02-22
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Expires: 1962-02-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
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Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-01 14:53
CPC Classifications
H; H01; H01J; H01J19/00; H01J19/28; H01J19/30; H01J2893/00; H01J2893/0001; H01J2893/0012; H01J2893/0019; H01J2893/002; H01J2893/0022; H01J2893/0023
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