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发明名称
DEVICE FOR DRILLING
摘要
申请公布号
SU1738992(A1)
申请公布日期
1992.06.07
申请号
SU19894665894
申请日期
1989.03.23
申请人
VNII BUROVOJ TEKHNIKI
发明人
KARAKHANOV EDUARD A,SU;MIKHEEV VLADIMIR L,SU;SIMDYANOV ALEKSANDR I,SU;KARLOV RUDOLF G,SU
分类号
E21B10/18
主分类号
E21B10/18
代理机构
代理人
主权项
地址
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