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发明名称
Light modulating device
摘要
申请公布号
US1894942(A)
申请公布日期
1933.01.24
申请号
US19290343541
申请日期
1929.02.28
申请人
WIRED RADIO, INC.
发明人
CHROMY BEN J.
分类号
H04N5/66
主分类号
H04N5/66
代理机构
代理人
主权项
地址
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