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发明名称
Road marker
摘要
申请公布号
US2303462(A)
申请公布日期
1942.12.01
申请号
US19400359636
申请日期
1940.10.04
申请人
THE CALCIBRITE CORPORATION
发明人
HORNE ARTHUR A.
分类号
E01F9/06
主分类号
E01F9/06
代理机构
代理人
主权项
地址
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