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经营范围
发明名称
WELL CALIBRATOR
摘要
申请公布号
SU1331988(A1)
申请公布日期
1987.08.23
申请号
SU19853949519
申请日期
1985.07.12
申请人
BARABASHKIN IGOR,SU;VOEVIDKO IGOR V,SU;IVASIV VASILIJ M,SU
发明人
BARABASHKIN IGOR I,SU;VOEVIDKO IGOR V,SU;IVASIV VASILIJ M,SU
分类号
E21B10/30
主分类号
E21B10/30
代理机构
代理人
主权项
地址
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