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经营范围
发明名称
THREADLESS DISCONNECTOR
摘要
申请公布号
SU1145122(A1)
申请公布日期
1985.03.15
申请号
SU19833591782
申请日期
1983.05.19
申请人
NAPITOV ALEKSANDR N,SU
发明人
NAPITOV ALEKSANDR N,SU
分类号
E21B43/10;E21B33/14;(IPC1-7):E21B43/10
主分类号
E21B43/10
代理机构
代理人
主权项
地址
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