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发明名称
APPARATUS FOR CEMENTING WELLS
摘要
申请公布号
SU1395809(A1)
申请公布日期
1988.05.15
申请号
SU19853967201
申请日期
1985.11.01
申请人
VNII BUROVOJ TEKHNIKI
发明人
TSYBIN ANATOLIJ A,SU;YANKULEV STANISLAV S,SU
分类号
E21B33/14
主分类号
E21B33/14
代理机构
代理人
主权项
地址
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