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发明名称
Electronic induction number group translator
摘要
申请公布号
US2675426(A)
申请公布日期
1954.04.13
申请号
US19500162497
申请日期
1950.05.17
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
VROOM EDWARD
分类号
H04Q3/00
主分类号
H04Q3/00
代理机构
代理人
主权项
地址
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