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发明名称
摘要
申请公布号
JPS62131728(U)
申请公布日期
1987.08.20
申请号
JP19860017506U
申请日期
1986.02.12
申请人
发明人
分类号
B21D19/00;B21D19/08;B21D37/04;(IPC1-7):B21D19/00
主分类号
B21D19/00
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代理人
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