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发明名称
摘要
申请公布号
JPS6322170(Y2)
申请公布日期
1988.06.17
申请号
JP19840157580U
申请日期
1984.10.17
申请人
发明人
分类号
E01H5/06;E02F3/815;E02F9/24;(IPC1-7):E01H5/06
主分类号
E01H5/06
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