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发明名称
Improvements relating to coded signalling apparatus
摘要
申请公布号
GB654165(A)
申请公布日期
1951.06.06
申请号
GB19470028330
申请日期
1947.10.23
申请人
WESTINGHOUSE BRAKE & 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
地址
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