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发明名称
Perfectionnement à la fabrication des pièces présentant un trou axial et un profil intérieur ou extérieur déterminé
摘要
申请公布号
FR1011116(A)
申请公布日期
1952.06.19
申请号
FRD1011116
申请日期
1948.12.10
申请人
SECURIT'S E. D. L. C.
发明人
分类号
B21K1/70
主分类号
B21K1/70
代理机构
代理人
主权项
地址
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