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发明名称
Friction shaft-coupling assembly
摘要
申请公布号
US2879092(A)
申请公布日期
1959.03.24
申请号
US19570702560
申请日期
1957.12.13
申请人
GENERAL ELECTRIC COMPANY
发明人
HARGROVE FRANK L.;GROBEL LLOYD P.
分类号
E21B10/60;F16B2/00;F16D1/033
主分类号
E21B10/60
代理机构
代理人
主权项
地址
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