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发明名称
Foldable, adjustable, and mailable advertising display
摘要
申请公布号
US2631046(A)
申请公布日期
1953.03.10
申请号
US19520265614
申请日期
1952.01.09
申请人
STEPHENS CHARLES A
发明人
STEPHENS CHARLES A.
分类号
G09F1/04
主分类号
G09F1/04
代理机构
代理人
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