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发明名称
Quotation board printing unit
摘要
申请公布号
US1881585(A)
申请公布日期
1932.10.11
申请号
US19310535065
申请日期
1931.05.04
申请人
THE WESTERN UNION TELEGRAPH COMPANY
发明人
HOOVER RAY;WHEELER EVAN R.
分类号
H04L12/18
主分类号
H04L12/18
代理机构
代理人
主权项
地址
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