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发明名称
Alliages d'acier pour pièces à forte résistance à la charge prolongée
摘要
申请公布号
FR48421(E)
申请公布日期
1938.02.03
申请号
FRD48421
申请日期
1937.05.03
申请人
KOHLE- UND EISENFORSCHUNG G.M.B.H.
发明人
分类号
C22C38/46
主分类号
C22C38/46
代理机构
代理人
主权项
地址
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