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发明名称
摘要
申请公布号
JPS59148197(U)
申请公布日期
1984.10.03
申请号
JP19830040721U
申请日期
1983.03.23
申请人
发明人
分类号
B21D37/04;B30B15/00;B30B15/02;(IPC1-7):B30B15/02
主分类号
B21D37/04
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代理人
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