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发明名称
Signal translating apparatus
摘要
申请公布号
US2999900(A)
申请公布日期
1961.09.12
申请号
US19570661804
申请日期
1957.05.27
申请人
ZENITH RADIO CORPORATION
发明人
VRIES ADRIAN J. DE;DRUZ WALTER S.
分类号
H04K1/00;H04N7/167
主分类号
H04K1/00
代理机构
代理人
主权项
地址
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