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发明名称
CORE-TAKING TOOL
摘要
申请公布号
SU713980(A1)
申请公布日期
1980.02.05
申请号
SU19772561837
申请日期
1977.12.09
申请人
VNII BUROVOJ TEKHNIKI
发明人
EDELMAN YAKOV A,SU;VOROZHBITOV MARAT ,SU;PALIJ POLIKARP A,SU;MARTYSHIN ADOLF N,SU;BERGSHTEJN OLEG YU,SU;POLSHKOV VLADIMIR K,SU;VELIKOSELSKIJ MARK A,SU;GELFGAT MIKHAIL YA,SU;GUBERMAN DAVID M,SU;VUGIN ROBERT B,SU
分类号
E21B25/00;(IPC1-7):E21B25/00
主分类号
E21B25/00
代理机构
代理人
主权项
地址
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