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经营范围
发明名称
Light controlled device or apparatus
摘要
申请公布号
US2047013(A)
申请公布日期
1936.07.07
申请号
US19340745766
申请日期
1934.09.27
申请人
LONDON ELECTRONICS (MACHINERY) LIMITED
发明人
DORN JAMES
分类号
主分类号
代理机构
代理人
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