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经营范围
发明名称
Television apparatus
摘要
申请公布号
US1839777(A)
申请公布日期
1932.01.05
申请号
US19290365679
申请日期
1929.05.24
申请人
UNITED RESEARCH CORPORATION
发明人
SILBERSTEIN LUDWIK
分类号
H04N3/08
主分类号
H04N3/08
代理机构
代理人
主权项
地址
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