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发明名称
Cardboard display device
摘要
申请公布号
US1793563(A)
申请公布日期
1931.02.24
申请号
US19290391750
申请日期
1929.09.11
申请人
KETTERLINUS LITHOGRAPHIC MFG. CO.
发明人
SCHWARTZ EUGENE
分类号
G09F1/10
主分类号
G09F1/10
代理机构
代理人
主权项
地址
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