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发明名称
METHOD OF MANUFACTURING BORE BIT
摘要
申请公布号
SU1708518(A1)
申请公布日期
1992.01.30
申请号
SU19894700352
申请日期
1989.05.10
申请人
BELOV ANDREJ M,SU;BUDYUKOV YURIJ E,SU
发明人
BELOV ANDREJ M,SU;BUDYUKOV YURIJ E,SU
分类号
B22F3/16;E21B10/46
主分类号
B22F3/16
代理机构
代理人
主权项
地址
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