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发明名称
Electrical relay
摘要
申请公布号
US2156684(A)
申请公布日期
1939.05.02
申请号
US19370182506
申请日期
1937.12.30
申请人
THE UNION SWITCH & SIGNAL COMPANY
发明人
FISHER ARTHUR W.;MISHELEVICH BENJAMIN
分类号
B61L29/28
主分类号
B61L29/28
代理机构
代理人
主权项
地址
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