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发明名称
Television control
摘要
申请公布号
US2193869(A)
申请公布日期
1940.03.19
申请号
US19370152739
申请日期
1937.07.09
申请人
GOLDSMITH ALFRED N
发明人
GOLDSMITH ALFRED N.
分类号
H04N5/272
主分类号
H04N5/272
代理机构
代理人
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