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发明名称
METHOD OF STARTING A WELL
摘要
申请公布号
SU1446271(A1)
申请公布日期
1988.12.23
申请号
SU19864044404
申请日期
1986.02.12
申请人
KHARIV IVAN YU,SU
发明人
KHARIV IVAN YU,SU
分类号
E21B21/00;E21B21/14;(IPC1-7):E21B21/00
主分类号
E21B21/00
代理机构
代理人
主权项
地址
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