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发明名称
APPARATUS FOR STRAIGHTENING CURVED HOLE
摘要
申请公布号
SU1677224(A1)
申请公布日期
1991.09.15
申请号
SU19894713085
申请日期
1989.07.03
申请人
TBILISSKOE OTDEL V PROEKTNO-IZYSKATELSKOGO NII "GIDROPROEKT" IM.S.YA.ZHUKA
发明人
GABRICHIDZE YULON D,SU;GOJ VLADIMIR L,SU
分类号
E21B7/10
主分类号
E21B7/10
代理机构
代理人
主权项
地址
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