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发明名称
Advertising display device
摘要
申请公布号
US2018214(A)
申请公布日期
1935.10.22
申请号
US19330700971
申请日期
1933.12.05
申请人
SHEET POLARIZER COMPANY, INC.
发明人
LAND EDWIN H.
分类号
G09F19/12
主分类号
G09F19/12
代理机构
代理人
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地址
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