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发明名称
Radiant energy signaling systems
摘要
申请公布号
US2745953(A)
申请公布日期
1956.05.15
申请号
US19510263561
申请日期
1951.12.27
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
JR. WILLIAM R. YOUNG,
分类号
H04B7/26
主分类号
H04B7/26
代理机构
代理人
主权项
地址
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