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发明名称
摘要
申请公布号
JPH0337796(Y2)
申请公布日期
1991.08.09
申请号
JP19860061345U
申请日期
1986.04.23
申请人
发明人
分类号
B21D43/05;(IPC1-7):B21D43/05
主分类号
B21D43/05
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代理人
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