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发明名称
Television echo suppression system
摘要
申请公布号
US2498391(A)
申请公布日期
1950.02.21
申请号
US19450584112
申请日期
1945.03.22
申请人
PHILCO CORPORATION
发明人
BINGLEY FRANK J.;JR. NEWLAND F. SMITH,
分类号
H04N5/21;H04N7/06
主分类号
H04N5/21
代理机构
代理人
主权项
地址
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