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经营范围
发明名称
CORE BARREL
摘要
申请公布号
SU629317(A1)
申请公布日期
1978.10.25
申请号
SU19731888678
申请日期
1973.03.07
申请人
SP K BYURO N-PROIZV OBEDINENIYA "GEOTEKHNIKA" MINISTERSTVA GEOLOGII SSSR
发明人
NIKANOROV ALEKSEJ M,SU;SMIRNOV OLEG V,SU;MELNIK EDUARD D,SU;KARDYSH VADIM G,SU;PETRUKOVICH STANISLAV V,SU;ZENKOV MIKHAIL D,SU;MAZALOV NIKOLAJ ,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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