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发明名称
Band end connection
摘要
申请公布号
US2666241(A)
申请公布日期
1954.01.19
申请号
US19500151456
申请日期
1950.03.23
申请人
HALL SR JESSE E
发明人
SR. JESSE E. HALL,
分类号
E21B17/10
主分类号
E21B17/10
代理机构
代理人
主权项
地址
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