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发明名称
Stock quotation projecting machine
摘要
申请公布号
US2075512(A)
申请公布日期
1937.03.30
申请号
US19320593768
申请日期
1932.02.18
申请人
NEWS PROJECTION CORPORATION
发明人
EITZEN AUGUST D.
分类号
G03B21/134
主分类号
G03B21/134
代理机构
代理人
主权项
地址
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