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经营范围
发明名称
PERCUSSIVE-ROTARY DRILLING MACHINE
摘要
申请公布号
SU649814(A1)
申请公布日期
1979.02.28
申请号
SU19772505745
申请日期
1977.07.11
申请人
MO I NEFTEKHIMICHESKOJ GAZOVOJ PROMY IM. I.M.GUBKINA
发明人
PETROSYANTS ANATOLIJ A,SU;KORNEV ALEKSANDR M,SU;GVOZDEV YURIJ A,SU;BIRYUKOV VLADIMIR F,SU;BATARIN EVGENIJ A,SU
分类号
E21B6/02;(IPC1-7):E21B5/00;E21B1/06
主分类号
E21B6/02
代理机构
代理人
主权项
地址
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