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发明名称
Frequency shift receiver converters
摘要
申请公布号
US2707209(A)
申请公布日期
1955.04.26
申请号
US19530392779
申请日期
1953.11.17
申请人
AMBROSIO BIAGIO F
发明人
AMBROSIO BIAGIO F.
分类号
H04L27/156
主分类号
H04L27/156
代理机构
代理人
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地址
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