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发明名称
摘要
申请公布号
JPS63116587(U)
申请公布日期
1988.07.27
申请号
JP19870009156U
申请日期
1987.01.23
申请人
发明人
分类号
E03F1/00;E03F5/10;(IPC1-7):E03F1/00
主分类号
E03F1/00
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