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经营范围
发明名称
HOLE DRILLING ARRANGEMENT
摘要
申请公布号
SU617530(A1)
申请公布日期
1978.07.30
申请号
SU19772459442
申请日期
1977.03.04
申请人
V PROEKTNO-IZYSKATELSKIJ NII "GIDROPROEKT" IM. S.YA.ZHUKA
发明人
MILKOVITSKIJ SEMEN ,SU;OKUNEV MIKHAIL SH,SU
分类号
(IPC1-7):E02D17/14
主分类号
(IPC1-7):E02D17/14
代理机构
代理人
主权项
地址
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