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FR56090E Expired / Lapsed FR ⏱️ 0.0 years remaining

Vacuum-tight seals for parts of metal and glass or the like

Assignee: Societe Francaise Radio Electrique
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Filing: 1945-12-14
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Granted: 1952-09-12
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Expires: 1965-12-14
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Abstract

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Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-10-24 18:17
CPC Classifications
H; H01; H01J; H01J5/00; H01J5/20; H01J5/22; H01J5/30; H01J2893/00; H01J2893/0033; H01J2893/0047

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