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发明名称
摘要
申请公布号
JPH0565446(U)
申请公布日期
1993.08.31
申请号
JP19910026905U
申请日期
1991.04.19
申请人
发明人
分类号
B21J13/08;B21K27/00;(IPC1-7):B21K27/00
主分类号
B21J13/08
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