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发明名称
DRILLING RIG
摘要
申请公布号
SU1507952(A1)
申请公布日期
1989.09.15
申请号
SU19874341570
申请日期
1987.12.14
申请人
SP K BYURO V PROMYSHLENNOGO OBEDINENIYA "SOYUZGEOTEKHNIKA"
发明人
SHURYGIN ALEKSANDR A,SU;PESHKOV ANATOLIJ N,SU;ROMASHKIN BORIS G,SU
分类号
E21B19/14
主分类号
E21B19/14
代理机构
代理人
主权项
地址
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