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发明名称
摘要
申请公布号
JPH0620581(U)
申请公布日期
1994.03.18
申请号
JP19920044383U
申请日期
1992.06.04
申请人
发明人
分类号
E03F5/04;(IPC1-7):E03F5/04
主分类号
E03F5/04
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