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发明名称
DEVICE FOR REAMING BOREHOLES
摘要
申请公布号
SU1599515(A1)
申请公布日期
1990.10.15
申请号
SU19884448961
申请日期
1988.06.27
申请人
KURTOV VENIAMIN D,SU;GAEVOJ MIROSLAV S,SU;FRIZ IVAN M,SU;LISHCHUK VASILIJ YU,SU;STARKOV ALEKSEJ A,SU
发明人
KURTOV VENIAMIN D,SU;GAEVOJ MIROSLAV S,SU;FRIZ IVAN M,SU;LISHCHUK VASILIJ YU,SU;STARKOV ALEKSEJ A,SU
分类号
E21B7/28
主分类号
E21B7/28
代理机构
代理人
主权项
地址
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