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经营范围
发明名称
Improvements relating to alternating current track circuit signalling systems for railways and the like
摘要
申请公布号
GB486022(A)
申请公布日期
1938.05.27
申请号
GB19360032570
申请日期
1936.11.27
申请人
LESLIE HURST PETER;DOUGLAS GOLDIE SHIPP;WESTINGHOUSE BRAKE AND SIGNAL COMPANY LIMITED
发明人
分类号
B61L1/18
主分类号
B61L1/18
代理机构
代理人
主权项
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