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发明名称
Heterodyne circuits
摘要
申请公布号
US1997012(A)
申请公布日期
1935.04.09
申请号
US19280327802
申请日期
1928.12.22
申请人
RADIO CORPORATION
发明人
PETERSON HAROLD O.
分类号
H04B1/16
主分类号
H04B1/16
代理机构
代理人
主权项
地址
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