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经营范围
发明名称
Acier spécial, destiné en particulier à la confection de soupapes d'échappement de moteurs à explosion, ou de tous autres organes travaillant dans des conditions analogues
摘要
申请公布号
FR731940(A)
申请公布日期
1932.09.10
申请号
FRD731940
申请日期
1931.04.22
申请人
SOCIETE ANONYME DES ACIERIES ET FORGES DE FIRMINY
发明人
分类号
C22C38/30
主分类号
C22C38/30
代理机构
代理人
主权项
地址
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