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FR1056811A Expired / Lapsed FR ⏱️ 0.0 years remaining

Improvements made or relating to magnetic devices

Assignee: KINGSTON INSTR Co Ltd
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Filing: 1951-09-27
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Granted: 1954-03-03
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Expires: 1971-09-27
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Abstract

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Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-11-08 21:13
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/02; H01F7/0231; H01F7/0252; H01F7/0257; E; E21; E21B; E21B31/00; E21B31/06

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