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发明名称
JOINT OF DRILLING RODS
摘要
申请公布号
SU954558(A1)
申请公布日期
1982.08.30
申请号
SU19802941265
申请日期
1980.06.11
申请人
TREST "MOSORGSTROJ" GLAVMOSSTROYA
发明人
SAPOZHINSKIJ GENNADIJ L,SU;CHEVORDAEV YURIJ P,SU;ABRAMOVICH ABRAM N,SU;MITYUSHINA NADEZHDA I,SU
分类号
E21B17/04;(IPC1-7):E21B17/04
主分类号
E21B17/04
代理机构
代理人
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