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经营范围
发明名称
Photoelectric cell
摘要
申请公布号
US2193953(A)
申请公布日期
1940.03.19
申请号
US19300427880
申请日期
1930.02.12
申请人
WILLIAM WALTON GEORGE
发明人
WALTON GEORGE WILLIAM
分类号
H01J40/00;H01J40/14;H01J40/16
主分类号
H01J40/00
代理机构
代理人
主权项
地址
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