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FR774124A Expired / Lapsed FR ⏱️ 0.0 years remaining

Gas-filled discharge tube for bypassing surges

Assignee: Koninklijke Philips NV
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Filing: 1934-06-04
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Granted: 1934-11-30
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Expires: 1954-06-04
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Abstract

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Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-10-24 08:18
CPC Classifications
H; H01; H01T; H01T4/00; H01T4/10; H01T4/12

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