FR878208A
Expired / Lapsed
FR
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Welding process of refractory metal parts and in particular uprights with grid bars for electric discharge receptacles
Assignee: Telefunken AG
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Filing: 1941-12-31
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Granted: 1943-01-14
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Expires: 1961-12-31
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
2026-11-04 22:08
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/13; H03K5/145; H01; H01J; H01J19/00; H01J19/28; H01J19/30; H03F; H03F1/00; H03F1/42; H03F1/48; H03F1/50; H03K5/01; H03K5/02; H01J2893/00; H01J2893/0001; H01J2893/0012; H01J2893/0019; H01J2893/002
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