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发明名称
High frequency signaling system
摘要
申请公布号
US2083666(A)
申请公布日期
1937.06.15
申请号
US19330691704
申请日期
1933.09.30
申请人
AMERICAN TELEPHONE AND TELEGRAPH COMPANY
发明人
POTTER RALPH KIMBALL
分类号
H04B3/10
主分类号
H04B3/10
代理机构
代理人
主权项
地址
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