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发明名称
摘要
申请公布号
JPS5348426(U)
申请公布日期
1978.04.24
申请号
JP19760130954U
申请日期
1976.09.28
申请人
发明人
分类号
E02F7/02;E01H5/00;E01H5/09;E02F3/76;(IPC1-7):E01H5/00
主分类号
E02F7/02
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