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发明名称
摘要
申请公布号
JPS62138704(U)
申请公布日期
1987.09.01
申请号
JP19860024139U
申请日期
1986.02.21
申请人
发明人
分类号
E01C19/48;(IPC1-7):E01C19/48
主分类号
E01C19/48
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代理人
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