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经营范围
发明名称
Television apparatus
摘要
申请公布号
US2346499(A)
申请公布日期
1944.04.11
申请号
US19420453658
申请日期
1942.08.05
申请人
MCCOLLUM HENRY J DE N
发明人
MCCOLLUM HENRY J. DE N.
分类号
H03D11/02;H04N5/44
主分类号
H03D11/02
代理机构
代理人
主权项
地址
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