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经营范围
发明名称
Protective device in television receivers
摘要
申请公布号
US2188290(A)
申请公布日期
1940.01.23
申请号
US19360105626
申请日期
1936.10.14
申请人
VON ARDENNE MANFRED
发明人
ARDENNE MANFRED VON
分类号
H04N3/18
主分类号
H04N3/18
代理机构
代理人
主权项
地址
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