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发明名称
CORE-BREAKER
摘要
申请公布号
SU1093788(A1)
申请公布日期
1984.05.23
申请号
SU19833580575
申请日期
1983.04.15
申请人
VNII BUROVOJ TEKHNIKI
发明人
FILIPPOV VLADIMIR N,SU;SULAKSHIN STEPAN S,SU;EDELMAN YAKOV A,SU;RAVILOV FARID F,SU
分类号
E21B25/14;(IPC1-7):E21B25/14
主分类号
E21B25/14
代理机构
代理人
主权项
地址
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