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发明名称
Selector and display device
摘要
申请公布号
US2339044(A)
申请公布日期
1944.01.11
申请号
US19420458880
申请日期
1942.09.18
申请人
THE BARRETT BINDERY CO.
发明人
BARRETT ARTHUR M.
分类号
G09F5/04
主分类号
G09F5/04
代理机构
代理人
主权项
地址
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