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发明名称
UNDERGOUND COLUMN BODY FOR FORCED DEHYDRATION OF POOR SUBSOIL
摘要
申请公布号
JPS5255206(A)
申请公布日期
1977.05.06
申请号
JP19750131580
申请日期
1975.10.31
申请人
NITSUKEN KK
发明人
TAMAI MOTOHARU
分类号
E02D3/10
主分类号
E02D3/10
代理机构
代理人
主权项
地址
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