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发明名称
Frequency discriminatory systems
摘要
申请公布号
US2711516(A)
申请公布日期
1955.06.21
申请号
US19490124298
申请日期
1949.10.29
申请人
RADIO CORPORATION
发明人
FREDENDALL GORDON L.
分类号
H03H11/34;H04N11/12
主分类号
H03H11/34
代理机构
代理人
主权项
地址
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