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发明名称
摘要
申请公布号
JPH01109322(U)
申请公布日期
1989.07.24
申请号
JP19880001728U
申请日期
1988.01.12
申请人
发明人
分类号
B21D22/02;B21D24/00;B21D37/08;(IPC1-7):B21D24/00
主分类号
B21D22/02
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代理人
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