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发明名称
Improvements in or relating to the transmission and reception of sounds and of combined pictures and sounds
摘要
申请公布号
GB403397(A)
申请公布日期
1933.12.19
申请号
GB19320008255
申请日期
1932.03.19
申请人
GEORGE WILLIAM WALTON
发明人
分类号
H04N7/084
主分类号
H04N7/084
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