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发明名称
REVERSE-RUN HOLE EXPANDER
摘要
申请公布号
SU1514943(A1)
申请公布日期
1989.10.15
申请号
SU19884354867
申请日期
1988.01.04
申请人
KRIVOROZHSKIJ GORNORUDNYJ INSTITUT
发明人
KURUNOV ALEKSANDR G,SU;KURUNOVA OLGA YU,SU;TIKHONOV ANATOLIJ I,SU;VELIKIJ MOISEJ I,SU
分类号
E21D3/00
主分类号
E21D3/00
代理机构
代理人
主权项
地址
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