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经营范围
发明名称
Electrically conductive revolving joint
摘要
申请公布号
US2545939(A)
申请公布日期
1951.03.20
申请号
US19470738523
申请日期
1947.04.01
申请人
FRANCIS N. BARD
发明人
BREITENSTEIN VICTOR W.
分类号
H01R39/64
主分类号
H01R39/64
代理机构
代理人
主权项
地址
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