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发明名称
METHOD FOR MANUFACTURE OF DRILL BIT NOZZLE
摘要
申请公布号
SU1655787(A1)
申请公布日期
1991.06.15
申请号
SU19884449986
申请日期
1988.05.26
申请人
VNII EKONOMIKI MINERALNOGO SYRYA GEOLOGORAZVEDOCHNYKH RABOT
发明人
PITERSKIJ VLADIMIR M,SU;PANIN NIKOLAJ M,SU;LINDO GENNADIJ V,SU;ARESTOV VIKTOR P,SU;SARKISYAN VADIM A,SU
分类号
B28B3/02
主分类号
B28B3/02
代理机构
代理人
主权项
地址
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