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经营范围
发明名称
Photoelectric tube
摘要
申请公布号
US2031331(A)
申请公布日期
1936.02.18
申请号
US19350010768
申请日期
1935.03.13
申请人
RADIO CORPORATION OF AMERICA
发明人
PENNING FRANS MICHEL
分类号
H01J40/16;H01J43/02
主分类号
H01J40/16
代理机构
代理人
主权项
地址
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