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发明名称
摘要
申请公布号
JPS62131750(U)
申请公布日期
1987.08.20
申请号
JP19860018201U
申请日期
1986.02.13
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发明人
分类号
B21D53/16;(IPC1-7):B21D53/16
主分类号
B21D53/16
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