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发明名称
Automatic stock quotation system
摘要
申请公布号
US1992271(A)
申请公布日期
1935.02.26
申请号
US19310563285
申请日期
1931.09.17
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
WILLIAMS SAMUEL B.
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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