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经营范围
发明名称
Noise cancellation circuit
摘要
申请公布号
US3090832(A)
申请公布日期
1963.05.21
申请号
US19610085614
申请日期
1961.01.30
申请人
ADMIRAL CORPORATION
发明人
FLOYD EARL C.
分类号
H04N5/21
主分类号
H04N5/21
代理机构
代理人
主权项
地址
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