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经营范围
发明名称
MECHANICAL JAR
摘要
申请公布号
SU1298343(A1)
申请公布日期
1987.03.23
申请号
SU19853935241
申请日期
1985.06.28
申请人
NI PI "GIPROMORNEFTEGAZ"
发明人
KROL VLADIMIR S,SU;SULTANOV FAIG N,SU
分类号
E21B31/107
主分类号
E21B31/107
代理机构
代理人
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地址
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