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发明名称
Radio receiving system
摘要
申请公布号
US1763751(A)
申请公布日期
1930.06.17
申请号
US19250069693
申请日期
1925.11.17
申请人
AMERICAN TELEPHONE AND TELEGRAPH COMPANY
发明人
BOWN RALPH
分类号
H04B1/26;H04B1/30
主分类号
H04B1/26
代理机构
代理人
主权项
地址
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