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发明名称
Improvements relating to the control of railroad and like vehicles
摘要
申请公布号
GB324433(A)
申请公布日期
1930.01.30
申请号
GB19280032707
申请日期
1928.11.09
申请人
JOHN NEALE;HORACE ROBERT WATSON
发明人
分类号
B61L3/06
主分类号
B61L3/06
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代理人
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