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摘要
申请公布号
JPS5850114(U)
申请公布日期
1983.04.05
申请号
JP19810143435U
申请日期
1981.09.29
申请人
发明人
分类号
E02F3/76;E01H5/04;E02F3/80;(IPC1-7):E01H5/04
主分类号
E02F3/76
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