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发明名称
ROLLER-BIT REAMER
摘要
申请公布号
SU1633080(A1)
申请公布日期
1991.03.07
申请号
SU19884430858
申请日期
1988.05.26
申请人
SREDNEAZIATSKIJ NII GEOLOGII MINERALNOGO SYRYA
发明人
ABDUMAZHITOV ABDUKHAMID A,SU;CHERKASOV VLADIMIR I,SU;KHANBABAEV AZAT A,SU
分类号
E21B10/28
主分类号
E21B10/28
代理机构
代理人
主权项
地址
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