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发明名称
Improvements relating to double wire mechanical control systems for railway signals
摘要
申请公布号
GB816138(A)
申请公布日期
1959.07.08
申请号
GB19550011543
申请日期
1955.04.21
申请人
WESTINGHOUSE BRAKE & SIGNAL COMPANY LIMITED;HENRY FRANCIS DENNISON
发明人
分类号
B61L5/02
主分类号
B61L5/02
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地址
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