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发明名称
PLUGGING ARRANGEMENT
摘要
申请公布号
SU1305306(A1)
申请公布日期
1987.04.23
申请号
SU19853904462
申请日期
1985.06.04
申请人
SEVERO-UKRAINSKOE PROIZV GEOLOGICHESKOE OBEDINENIE
发明人
ABRAMCHUK ANATOLIJ B,SU;ZAJONTS OLEG L,SU;GONCHAROV ALEKSEJ E,SU
分类号
E21B27/02
主分类号
E21B27/02
代理机构
代理人
主权项
地址
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