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发明名称
摘要
申请公布号
JPS5269130(U)
申请公布日期
1977.05.23
申请号
JP19750116212U
申请日期
1975.08.23
申请人
发明人
分类号
E01C23/09;(IPC1-7):E01C23/09
主分类号
E01C23/09
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