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发明名称
Traffic directing marker
摘要
申请公布号
US3334554(A)
申请公布日期
1967.08.08
申请号
US19650433638
申请日期
1965.02.18
申请人
ADAMS FLOYD L
发明人
ADAMS FLOYD L.
分类号
E01F9/04;E01F9/093
主分类号
E01F9/04
代理机构
代理人
主权项
地址
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