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发明名称
OUTSIDE SPEAR
摘要
申请公布号
SU1677254(A1)
申请公布日期
1991.09.15
申请号
SU19894732609
申请日期
1989.08.22
申请人
U PO POVYSHENIYU NEFTEOTDACHI PLASTOV KAPITALNOMU REMONTU SKVAZHIN PROIZVODSTVENNOGO OBEDINENIYA "STAVROPOLNEFTEGAZ"
发明人
ANTAMANOV VLADIMIR S,SU;SILAEV ALEKSANDR V,SU;SILAEV VLADIMIR I,SU;ANTAMANOV SERGEJ I,SU
分类号
E21B31/18
主分类号
E21B31/18
代理机构
代理人
主权项
地址
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