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发明名称
VALVE ASSEMBLY
摘要
申请公布号
SU578446(A1)
申请公布日期
1977.10.30
申请号
SU19752114764
申请日期
1975.03.10
申请人
TATARSKIJ GNI PI NEFTYANOJ PROMY SSSR
发明人
GORYUNOV YURIJ A,SU;MAKSUTOV RAVKHAT A,SU;DOBROSKOK BORIS E,SU;NIKITENKO VIKTOR V,SU
分类号
E21B43/00;(IPC1-7):E21B43/00
主分类号
E21B43/00
代理机构
代理人
主权项
地址
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