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发明名称
Electrooptical transmission
摘要
申请公布号
US1759504(A)
申请公布日期
1930.05.20
申请号
US19270181537
申请日期
1927.04.06
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
GRAY FRANK
分类号
H04N3/10
主分类号
H04N3/10
代理机构
代理人
主权项
地址
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