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发明名称
Switch indication circuits
摘要
申请公布号
US2299275(A)
申请公布日期
1942.10.20
申请号
US19410418357
申请日期
1941.11.08
申请人
THE UNION SWITCH & SIGNAL COMPANY
发明人
JEROME ARTHUR L.
分类号
B61L5/10
主分类号
B61L5/10
代理机构
代理人
主权项
地址
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