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经营范围
发明名称
Highway signal
摘要
申请公布号
US2168484(A)
申请公布日期
1939.08.08
申请号
US19390266193
申请日期
1939.04.05
申请人
ARTHUR LOUX RAYMOND
发明人
LOUX RAYMOND ARTHUR
分类号
E01F9/012
主分类号
E01F9/012
代理机构
代理人
主权项
地址
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