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发明名称
Television apparatus
摘要
申请公布号
US1787920(A)
申请公布日期
1931.01.06
申请号
US19290345005
申请日期
1929.03.07
申请人
WATSON ARTHUR H
发明人
WATSON ARTHUR H.
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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