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发明名称
Display device
摘要
申请公布号
US2294641(A)
申请公布日期
1942.09.01
申请号
US19410395324
申请日期
1941.05.27
申请人
THE UNITED STATES PRINTING & LITHOGRAPH COMPANY
发明人
WALTERS WILLIAM H.
分类号
A47F5/11
主分类号
A47F5/11
代理机构
代理人
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地址
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