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发明名称
摘要
申请公布号
JPH0318002(Y2)
申请公布日期
1991.04.16
申请号
JP19860103877U
申请日期
1986.07.07
申请人
发明人
分类号
B21B13/14;(IPC1-7):B21B13/14
主分类号
B21B13/14
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