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发明名称
Procédé et appareil pour former une pointe de perçage et l'objet ainsi formé
摘要
申请公布号
FR1375840(A)
申请公布日期
1964.10.23
申请号
FR19630945195
申请日期
1963.08.20
申请人
ILLINOIS TOOL WORKS INC.
发明人
分类号
B21K1/56
主分类号
B21K1/56
代理机构
代理人
主权项
地址
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