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发明名称
Improvements in electric signalling systems particularly for train describing purposes
摘要
申请公布号
GB437654(A)
申请公布日期
1935.11.04
申请号
GB19340013307
申请日期
1934.05.02
申请人
RALPH MORDIN;WESTINGHOUSE BRAKE & SIGNAL COMPANY LIMITED
发明人
分类号
B61L25/04
主分类号
B61L25/04
代理机构
代理人
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地址
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