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经营范围
发明名称
Photo-electric tube
摘要
申请公布号
US1843728(A)
申请公布日期
1932.02.02
申请号
US19280308715
申请日期
1928.09.27
申请人
GENERAL ELECTRIC COMPANY
发明人
JR. HARRY F. MESICK,
分类号
H01J40/04;H01J40/06
主分类号
H01J40/04
代理机构
代理人
主权项
地址
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