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发明名称
Light modulating device
摘要
申请公布号
US2155661(A)
申请公布日期
1939.04.25
申请号
US19370128622
申请日期
1937.03.02
申请人
SCOPHONY LIMITED
发明人
JEFFREE JOHN HENRY
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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