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经营范围
发明名称
Perfectionnements à la fabrication de corps creux au moyen de poudres
摘要
申请公布号
FR1221576(A)
申请公布日期
1960.06.02
申请号
FR19590792577
申请日期
1959.04.20
申请人
E. I. DU PONT DE NEMOURS AND COMPANY
发明人
分类号
B22F3/08
主分类号
B22F3/08
代理机构
代理人
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地址
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