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发明名称
Radio telegraph system
摘要
申请公布号
US1842721(A)
申请公布日期
1932.01.26
申请号
US19280268238
申请日期
1928.04.07
申请人
TELETYPE CORPORATION
发明人
KLEINSCHMIDT EDWARD E.
分类号
H04L25/40
主分类号
H04L25/40
代理机构
代理人
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