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经营范围
发明名称
INTERVAL PACKER
摘要
申请公布号
SU613081(A1)
申请公布日期
1978.06.30
申请号
SU19752141408
申请日期
1975.06.05
申请人
PECHORSKIJ GNI PI NEFTYANOJ PROMYSHLENNOSTI
发明人
GUBANOV BORIS F,SU;KOROLEV IGOR P,SU;SANSIEV VLADIMIR G,SU
分类号
E21B33/12;(IPC1-7):E21B33/12
主分类号
E21B33/12
代理机构
代理人
主权项
地址
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