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发明名称
LEVER-TYPE CORE EXTRACTOR
摘要
申请公布号
SU600288(A1)
申请公布日期
1978.03.30
申请号
SU19772465345
申请日期
1977.03.22
申请人
VNII BUROVOJ TEKHNIKI
发明人
EDELMAN YAKOV A,SU;POLSHKOV VLADIMIR K,SU;KONSTANTINOV LEONID P,SU;DOROFEEV VITALIJ A,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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