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经营范围
发明名称
Automatically operated traffic control system
摘要
申请公布号
US2126431(A)
申请公布日期
1938.08.09
申请号
US19330667868
申请日期
1933.04.25
申请人
VON OPEL FRITZ
发明人
OPEL FRITZ VON
分类号
G08G1/08
主分类号
G08G1/08
代理机构
代理人
主权项
地址
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