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发明名称
EXPANDER
摘要
申请公布号
SU945353(A1)
申请公布日期
1982.07.23
申请号
SU19802899249
申请日期
1980.03.26
申请人
N-PROIZV OB PO TERMICHESKIM METODAM DOBYCHI NEFTI
发明人
KORSHUNOV VALERIJ N,SU;KUVSHINOV VIKTOR A,SU;MASHKOV VIKTOR A,SU;MASLOV IGOR I,SU;ZAKKHEEV ALEKSANDR N,SU
分类号
E21B10/32;(IPC1-7):E21B10/32
主分类号
E21B10/32
代理机构
代理人
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