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发明名称
Sign
摘要
申请公布号
US1955196(A)
申请公布日期
1934.04.17
申请号
US19320646044
申请日期
1932.12.07
申请人
TRANSIT ADVERTISING, INCORPORATED
发明人
LOVELESS FRED H.
分类号
G09F15/00
主分类号
G09F15/00
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