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发明名称
摘要
申请公布号
JPH01172401(U)
申请公布日期
1989.12.06
申请号
JP19880064185U
申请日期
1988.05.16
申请人
发明人
分类号
B21C3/08;B21B27/02;B21B27/03;(IPC1-7):B21B27/02
主分类号
B21C3/08
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代理人
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