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FR990402A Expired / Lapsed FR ⏱️ 0.0 years remaining

Electronic discharge device

Assignee: EMI Ltd
•
Filing: 1949-07-07
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Granted: 1951-09-21
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Expires: 1969-07-07
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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 2026-10-23 22:41
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/44; H01J21/00; H01J21/02; H01J31/00; H01J31/08; H01J31/26; H01J31/28; H01J31/30; H01J31/32; H01J31/34

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