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发明名称
ARRANGEMENT FOR RUNNING-IN AND SEALING A FLUSH CASTING STRING
摘要
申请公布号
SU1025871(A1)
申请公布日期
1983.06.30
申请号
SU19802851344
申请日期
1980.04.15
申请人
AZERB GNI PI NEFTYANOJ PROMYSHLENNOSTI
发明人
SEID-RZA MIR K,SU;OGANOV GURGEN S,SU
分类号
E21B33/14;(IPC1-7):E21B33/14
主分类号
E21B33/14
代理机构
代理人
主权项
地址
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