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发明名称
TRAFFIC WARNING DEVICE
摘要
申请公布号
CA330006(A)
申请公布日期
1933.02.07
申请号
CAD330006
申请日期
申请人
THE COPALITE REFLECTING SIGNAL COMPANY;THE L. H. COPPEL CO. LTD.
发明人
LEONARD H. COPPEL
分类号
主分类号
代理机构
代理人
主权项
地址
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