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发明名称
ASSEMBLY FOR CONNECTION OF VERTICAL WELL TO HORIZONTAL DRAIN
摘要
申请公布号
SU1730348(A1)
申请公布日期
1992.04.30
申请号
SU19904801244
申请日期
1990.03.12
申请人
N-PROIZV OB "SANIIRI"
发明人
UMAROV PULAT D,SU
分类号
E02B11/00
主分类号
E02B11/00
代理机构
代理人
主权项
地址
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