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发明名称
APPARATUS FOR DRILLING MULTIBOTTOM HOLES
摘要
申请公布号
SU1139817(A1)
申请公布日期
1985.02.15
申请号
SU19792752828
申请日期
1979.04.13
申请人
VNII BUROVOJ TEKHNIKI
发明人
BULAKH GEORGIJ I,SU;VYSOTSKIJ VLADIMIR A,SU;GUSMAN MOISEJ T,SU;LIBERMAN VLADIMIR I,SU;PULCHENKO VALERIJ M,SU;RYBALKA ANATOLIJ A,SU;LAKTIONOV ANATOLIJ T,SU
分类号
E21B7/08;(IPC1-7):E21B7/08
主分类号
E21B7/08
代理机构
代理人
主权项
地址
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