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发明名称
APPARATUS FOR ELIMINATING PIPE STRING DISTORSIONS
摘要
申请公布号
SU859603(A1)
申请公布日期
1981.08.30
申请号
SU19792763135
申请日期
1979.05.07
申请人
VNII PO KREPLENIYU SKVAZHIN BUROVYM RASTVORAM
发明人
PANKOV VASILIJ P,SU;KONRAD FRAIM F,SU;PETROV STANISLAV F,SU;KOSHELEV NIKOLAJ N,SU
分类号
E21B29/00;(IPC1-7):E21B29/00
主分类号
E21B29/00
代理机构
代理人
主权项
地址
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