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发明名称
Light controlling apparatus
摘要
申请公布号
US1852806(A)
申请公布日期
1932.04.05
申请号
US19300471573
申请日期
1930.07.29
申请人
GENERAL ELECTRIC COMPANY
发明人
HARTLEY LOWELL J.
分类号
G02F1/07
主分类号
G02F1/07
代理机构
代理人
主权项
地址
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