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发明名称
BOREHOLE DRILLING ARRANGEMENT
摘要
申请公布号
SU724674(A1)
申请公布日期
1980.03.30
申请号
SU19772480869
申请日期
1977.04.28
申请人
PK BYURO GLAVSTROJMEKHANIZATSII MINISTERSTVA TRANSPORTNOGO STROITELSTVA SSSR
发明人
YUROVSKIJ STANISLAV M,SU;RUMYANTSEV ROMUALD A,SU;ZAGORSKIJ GENNADIJ S,SU;BARSEGYAN VACHAGAN A,SU
分类号
(IPC1-7):E21B3/12;E21B5/00
主分类号
(IPC1-7):E21B3/12
代理机构
代理人
主权项
地址
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