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发明名称
Electrooptical system
摘要
申请公布号
US2072478(A)
申请公布日期
1937.03.02
申请号
US19300464450
申请日期
1930.06.28
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
GRAY FRANK
分类号
H04N7/06
主分类号
H04N7/06
代理机构
代理人
主权项
地址
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