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发明名称
DRILLING HEAD
摘要
申请公布号
SU1765348(A1)
申请公布日期
1992.09.30
申请号
SU19904875475
申请日期
1990.10.17
申请人
SREDNEAZIATSKIJ GNI PI GAZOVOJ PROMYSHLENNOSTI
发明人
RAKHIMOV AKBAR K,SU;PODVARKOV GRIGORIJ A,SU;STEKLYANOV BORIS L,SU;TORGASHOV ALEKSANDR V,SU;SOKOLOV YURIJ N,SU;LOGINOV ANATOLIJ A,SU;FILATOV BORIS P,SU
分类号
E21B10/08
主分类号
E21B10/08
代理机构
代理人
主权项
地址
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