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发明名称
ANNULAR DRILL
摘要
申请公布号
SU727466(A1)
申请公布日期
1980.04.15
申请号
SU19772543137
申请日期
1977.11.16
申请人
GULEVSKIJ GRIGORIJ ,SU
发明人
GULEVSKIJ GRIGORIJ ,SU
分类号
B28D1/14;B28D1/04;(IPC1-7):B28D1/14
主分类号
B28D1/14
代理机构
代理人
主权项
地址
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