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DE574020C Expired / Lapsed DE ⏱️ 0.0 years remaining

Electron tubes

Assignee: Siemens Schuckertwerke AG
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Filing: —
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Granted: 1933-04-08
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Expires: 1950-04-08
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Abstract

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Inventors

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Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-11-05 18:25
CPC Classifications
H; H01; H01J; H01J19/00; H01J19/28; H01J19/38; H01J2893/00; H01J2893/0001; H01J2893/0012; H01J2893/0015

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