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发明名称
Paging system
摘要
申请公布号
US2032037(A)
申请公布日期
1936.02.25
申请号
US19310546030
申请日期
1931.06.22
申请人
CHARLES AUTH
发明人
AUTH CHARLES
分类号
G08B5/36
主分类号
G08B5/36
代理机构
代理人
主权项
地址
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