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发明名称
Car top sign
摘要
申请公布号
US3290813(A)
申请公布日期
1966.12.13
申请号
US19660560280
申请日期
1966.06.24
申请人
ROSE SR RALPH B
发明人
SR. RALPH B. ROSE,
分类号
G09F21/04
主分类号
G09F21/04
代理机构
代理人
主权项
地址
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