Patent US4149093A successfully refreshed from Google Patents.
Patent FR698097A successfully refreshed from Google Patents.
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FR698097A Expired / Lapsed FR ⏱️ 0.0 years remaining

Electric discharge tube with cooling jacket

Assignee: Koninklijke Philips NV
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Filing: 1930-06-26
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Granted: 1931-01-27
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Expires: 1950-06-26
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Abstract

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Inventors

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Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-10-25 21:18
CPC Classifications
H; H01; H01J; H01J19/00; H01J19/28; H01J19/32; H01J19/36; H01J2893/00; H01J2893/0001; H01J2893/0012; H01J2893/0027

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