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发明名称
Advertising display device
摘要
申请公布号
US2483901(A)
申请公布日期
1949.10.04
申请号
US19460682689
申请日期
1946.07.10
申请人
HARRIS ALEXANDER G
发明人
HARRIS ALEXANDER G.
分类号
G09F13/12;G09F19/00
主分类号
G09F13/12
代理机构
代理人
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地址
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