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发明名称
CORE-CUTTING HEAD
摘要
申请公布号
RU1802061(C)
申请公布日期
1993.03.15
申请号
SU19914952196
申请日期
1991.06.28
申请人
VNII BUROVOJ TEKHNIKI
发明人
RAVILOV FARID F,SU;EDELMAN YAKOV A,SU;MESSER ALEKSEJ G,SU;SIANKA IBARRA L,SU;KUNTSYAK YAROSLAV V,SU
分类号
E21B10/02
主分类号
E21B10/02
代理机构
代理人
主权项
地址
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