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发明名称
Perfectionnement aux modes de commande des signaux réglementant la circulation dans les rues
摘要
申请公布号
FR696675(A)
申请公布日期
1931.01.06
申请号
FRD696675
申请日期
1930.06.05
申请人
发明人
HARRISS JOHN ALTON
分类号
G08G1/095
主分类号
G08G1/095
代理机构
代理人
主权项
地址
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