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发明名称
摘要
申请公布号
JPH0370825(U)
申请公布日期
1991.07.17
申请号
JP19890130502U
申请日期
1989.11.10
申请人
发明人
分类号
B21D37/04;B21D24/02;B30B15/02;(IPC1-7):B21D37/04
主分类号
B21D37/04
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代理人
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