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发明名称
摘要
申请公布号
JPH0422544(U)
申请公布日期
1992.02.25
申请号
JP19900060701U
申请日期
1990.06.11
申请人
发明人
分类号
E02F3/345;E02F3/40;(IPC1-7):E02F3/345
主分类号
E02F3/345
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