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发明名称
摘要
申请公布号
JPS62138715(U)
申请公布日期
1987.09.01
申请号
JP19860025717U
申请日期
1986.02.26
申请人
发明人
分类号
E01F13/00;E01C5/20;E01C11/22;E01F13/02;E02B3/06;(IPC1-7):E01F13/00
主分类号
E01F13/00
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代理人
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