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发明名称
摘要
申请公布号
JPH05227(U)
申请公布日期
1993.01.08
申请号
JP19910043097U
申请日期
1991.06.10
申请人
发明人
分类号
B21D41/04;(IPC1-7):B21D41/04
主分类号
B21D41/04
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