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经营范围
发明名称
Improvements in station indicators and departure signalling systems for vehicles
摘要
申请公布号
GB449529(A)
申请公布日期
1936.06.30
申请号
GB19340029558
申请日期
1935.02.16
申请人
ROBERT FISHER BROWN
发明人
分类号
B61L25/04
主分类号
B61L25/04
代理机构
代理人
主权项
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