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经营范围
发明名称
Photo-electric tube
摘要
申请公布号
US1950955(A)
申请公布日期
1934.03.13
申请号
US19300423984
申请日期
1930.01.28
申请人
RADIOVISION CORPORATION
发明人
WEIN SAMUEL
分类号
H01J40/04
主分类号
H01J40/04
代理机构
代理人
主权项
地址
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