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经营范围
发明名称
DRILLING RIG
摘要
申请公布号
SU1650905(A1)
申请公布日期
1991.05.23
申请号
SU19864092276
申请日期
1986.06.02
申请人
VNI PROEKTNO-IZYSKATELSKIJ I "GIDROPROEKT" IM.S.YA.ZHUKA
发明人
SKVORTSOV VSEVOLOD F,SU;VODOPYAN VLADIMIR K,SU;CHIZHOV IVAN I,SU;LESHCHUK MEFODIJ N,SU
分类号
E21B3/02
主分类号
E21B3/02
代理机构
代理人
主权项
地址
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