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发明名称
Printing telegraph system
摘要
申请公布号
GB752391(A)
申请公布日期
1956.07.11
申请号
GBD752391
申请日期
1954.05.03
申请人
CHARLES MARTIN SWEET
发明人
分类号
H04L21/00
主分类号
H04L21/00
代理机构
代理人
主权项
地址
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