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发明名称
摘要
申请公布号
JPS627740(Y2)
申请公布日期
1987.02.23
申请号
JP19830027858U
申请日期
1983.02.24
申请人
发明人
分类号
E03F5/046;E03F5/04;(IPC1-7):E03F5/04
主分类号
E03F5/046
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