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发明名称
PERFORATOR DRILL
摘要
申请公布号
SU1002565(A2)
申请公布日期
1983.03.07
申请号
SU19813320847
申请日期
1981.07.21
申请人
STAROOSKOLSKIJ MEKHANICHESKIJ ZAVOD
发明人
MORZHARETTO ALBERT A,SU;KOSTALEVSKIJ VALERIJ M,SU
分类号
E21B1/30;(IPC1-7):E21C3/24
主分类号
E21B1/30
代理机构
代理人
主权项
地址
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