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发明名称
Improvements relating to railway signalling systems
摘要
申请公布号
GB571241(A)
申请公布日期
1945.08.14
申请号
GB19420003341
申请日期
1942.03.13
申请人
WESTINGHOUSE BRAKE & SIGNAL COMPANY LIMITED
发明人
分类号
B61L23/16
主分类号
B61L23/16
代理机构
代理人
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地址
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