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发明名称
Improvements in or relating to high speed telegraphic systems
摘要
申请公布号
GB633688(A)
申请公布日期
1949.12.19
申请号
GB19450025299
申请日期
1945.09.28
申请人
GEORGES VALENSI
发明人
VALENSI GEORGES
分类号
H03M5/00;H04L13/18;H04L17/30;H04L21/00;H04L25/49
主分类号
H03M5/00
代理机构
代理人
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