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发明名称
摘要
申请公布号
JPH0543962(Y2)
申请公布日期
1993.11.08
申请号
JP19870178842U
申请日期
1987.11.26
申请人
发明人
分类号
B21J13/08;B21K27/00;B23Q7/18;(IPC1-7):B21K27/00
主分类号
B21J13/08
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代理人
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