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经营范围
发明名称
AUGER DRILL
摘要
申请公布号
SU1002499(A1)
申请公布日期
1983.03.07
申请号
SU19813257056
申请日期
1981.02.24
申请人
VNI PK I NEFTYANOGO MASH "VNIINEFTEMASH"
发明人
UMANCHIK NIKOLAJ P,SU;KUZNETSOV KARL A,SU;KOMAROV VLADIMIR N,SU;MELNIKOV SERGEJ P,SU;ROZIN MIKHAIL M,SU;LEBEDEV DMITRIJ A,SU;ALEKSIKOV VASILIJ F,SU
分类号
E21B7/24;(IPC1-7):E21B7/24
主分类号
E21B7/24
代理机构
代理人
主权项
地址
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