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发明名称
摘要
申请公布号
JP2569648(Y2)
申请公布日期
1998.04.28
申请号
JP19920047586U
申请日期
1992.06.15
申请人
发明人
分类号
B21D39/00;B21D39/04;F16K24/00;(IPC1-7):B21D39/00
主分类号
B21D39/00
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代理人
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