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发明名称
METHOD AND APPARATUS FOR PLUGGING WELLS
摘要
申请公布号
SU1749444(A1)
申请公布日期
1992.07.23
申请号
SU19904809262
申请日期
1990.01.31
申请人
VNII GORNOJ GEOMEKHANIKI MARK
发明人
VEDYASHKIN ANATOLIJ S,SU
分类号
E21B33/13;E21B33/134
主分类号
E21B33/13
代理机构
代理人
主权项
地址
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