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发明名称
TRAFFIC CONTROL SIGNAL
摘要
申请公布号
CA422889(A)
申请公布日期
1944.09.26
申请号
CAD422889
申请日期
申请人
AUTOMATIC TELEPHONE AND ELECTRIC COMPANY;AUTOMATIC ELECTRIC COMPANY LIMITED
发明人
ALFRED PERCY BAILEY RENSHAW
分类号
主分类号
代理机构
代理人
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