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发明名称
COUPLING FOR STEPPED GROUTING OF CASTING STRINGS
摘要
申请公布号
SU949160(A1)
申请公布日期
1982.08.07
申请号
SU19803211035
申请日期
1980.10.08
申请人
VNII PO KREPLENIYU SKVAZHIN BUROVYM RASTVORAM
发明人
NEUDACHIN VADIM P,SU;KUKSOV ANATOLIJ K,SU;EREMENKO VALENTIN V,SU;KOKAEV VLADIMIR N,SU;TIKHONOV VIKTOR S,SU;BULATOV ANATOLIJ I,SU
分类号
E21B33/14;(IPC1-7):E21B33/14
主分类号
E21B33/14
代理机构
代理人
主权项
地址
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