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发明名称
Impulse track circuit with filtered alternating current supply
摘要
申请公布号
US2903574(A)
申请公布日期
1959.09.08
申请号
US19560606367
申请日期
1956.08.27
申请人
GENERAL RAILWAY SIGNAL COMPANY
发明人
REES FRANK X.
分类号
B61L1/18
主分类号
B61L1/18
代理机构
代理人
主权项
地址
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