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经营范围
发明名称
Improvements in or relating to road traffic signalling means
摘要
申请公布号
GB419655(A)
申请公布日期
1934.11.15
申请号
GB19340017679
申请日期
1934.06.14
申请人
JAMES FREDERICK SOUTHGATE;HENRY MONTAGU DOBSON
发明人
分类号
G08G1/096
主分类号
G08G1/096
代理机构
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