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发明名称
WELL PIPE GRAB
摘要
申请公布号
SU956745(A1)
申请公布日期
1982.09.07
申请号
SU19802851327
申请日期
1980.04.10
申请人
KURBANOV NARIMAN G,SU;GASANOV ASIF P,SU;GLADKOV YURIJ A,SU;MAMEDOV ALLADIN A,SU
发明人
KURBANOV NARIMAN G,SU;GASANOV ASIF P,SU;GLADKOV YURIJ A,SU;MAMEDOV ALLADIN A,SU
分类号
E21B31/20;(IPC1-7):E21B31/20
主分类号
E21B31/20
代理机构
代理人
主权项
地址
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