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FR519847A Expired / Lapsed FR ⏱️ 0.0 years remaining

High speed steel alloys and their manufacturing method

Assignee: CENTRALE DES ACIERS FENCHELLE
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Filing: 1920-02-27
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Granted: 1921-06-16
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Expires: 1940-02-27
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Abstract

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Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-11-09 10:13
CPC Classifications
C; C22; C22C; C22C33/00; C22C33/04

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