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发明名称
METHOD OF ROTARY-TURBINE DRILLING AND RELEVANT DEVICE
摘要
申请公布号
SU1701925(A1)
申请公布日期
1991.12.30
申请号
SU19904796543
申请日期
1990.02.27
申请人
VNII BUROVOJ TEKHNIKI
发明人
RYBALKA ANATOLIJ A,SU;ZAKHAROV VIKTOR V,SU;LIBERMAN VLADIMIR I,SU
分类号
E21D1/06
主分类号
E21D1/06
代理机构
代理人
主权项
地址
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