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发明名称
Selective calling system
摘要
申请公布号
US2576216(A)
申请公布日期
1951.11.27
申请号
US19470726585
申请日期
1947.02.05
申请人
AUTOMATIC ELECTRIC LABORATORIES, INC.
发明人
DORR CLARENCE J.
分类号
H04W88/02
主分类号
H04W88/02
代理机构
代理人
主权项
地址
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