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发明名称
摘要
申请公布号
JPH0622511(Y2)
申请公布日期
1994.06.15
申请号
JP19890038542U
申请日期
1989.03.31
申请人
发明人
分类号
B21D43/00;B21D43/10;(IPC1-7):B21D43/10
主分类号
B21D43/00
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代理人
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