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发明名称
摘要
申请公布号
JPH0342154(Y2)
申请公布日期
1991.09.04
申请号
JP19870113789U
申请日期
1987.07.27
申请人
发明人
分类号
E03F5/16;(IPC1-7):E03F5/16
主分类号
E03F5/16
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代理人
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