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发明名称
Keyboard controlled telegraph apparatus
摘要
申请公布号
US2559637(A)
申请公布日期
1951.07.10
申请号
US19490084864
申请日期
1949.04.01
申请人
CREED AND COMPANY LIMITED
发明人
KIRCHEL ALAN ARTHUR
分类号
H04L13/16
主分类号
H04L13/16
代理机构
代理人
主权项
地址
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