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发明名称
Road map support for motor vehicles
摘要
申请公布号
US2671977(A)
申请公布日期
1954.03.16
申请号
US19520306031
申请日期
1952.08.23
申请人
LINGARD JAMES B
发明人
LINGARD JAMES B.
分类号
G09B29/10
主分类号
G09B29/10
代理机构
代理人
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