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发明名称
Perfectionnements apportés aux machines pour fabriquer à froid, des pièces métalliques creuses
摘要
申请公布号
FR1018950(A)
申请公布日期
1953.01.14
申请号
FRD1018950
申请日期
1950.04.29
申请人
THE NATIONAL MACHINERY COMPANY
发明人
分类号
B21K1/46
主分类号
B21K1/46
代理机构
代理人
主权项
地址
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