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经营范围
发明名称
Telegraph transmitter
摘要
申请公布号
US2498724(A)
申请公布日期
1950.02.28
申请号
US19470750108
申请日期
1947.05.23
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
THOMPSON ALFRED EDWARD;SALMON REGINALD DENNIS
分类号
H04L17/02;H04L17/04
主分类号
H04L17/02
代理机构
代理人
主权项
地址
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