FR874664A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Solder for tungsten wires glowing in service in electric discharge tubes or incandescent lamps
Assignee: Telefunken AG
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Filing: 1941-08-11
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Granted: 1942-08-18
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Expires: 1961-08-11
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
2026-11-01 09:45
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/02; B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/32; H01J; H01J1/00; H01J1/02; H01J1/13; H01J1/15
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