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发明名称
DEVICE FOR SUSPENDING SECTIONS OF CASING STRING ON CEMENT STONE
摘要
申请公布号
SU956756(A1)
申请公布日期
1982.09.07
申请号
SU19802909935
申请日期
1980.04.11
申请人
VNII PO KREPLENIYU SKVAZHIN BUROVYM RASTVORAM
发明人
SMIRNOV ANATOLIJ V,SU;LEDYASHOV OLEG A,SU;EREMENKO VALENTIN V,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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