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发明名称
WELLHEAD SEALING HEAD
摘要
申请公布号
RU2068488(C1)
申请公布日期
1996.10.27
申请号
SU19925063999
申请日期
1992.10.06
申请人
UKRAINSKIJ NAUCHNO-ISSLEDOVATELSKIJ INSTITUT PRIRODNYKH GAZOV
发明人
ANDRIANOV STANISLAV VLADIMIROVICH;DITKOVSKIJ ANATOLIJ VIKTOROVICH;STROGIJ ANATOLIJ YAKOVLEVICH
分类号
E21B33/06;(IPC1-7):E21B33/06
主分类号
E21B33/06
代理机构
代理人
主权项
地址
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