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发明名称
Improvements in signal-recording mechanism for start-stop telegraph systems
摘要
申请公布号
GB439745(A)
申请公布日期
1935.12.13
申请号
GB19340018092
申请日期
1934.06.19
申请人
RONALD GEORGE GRIFFITH
发明人
分类号
H04L17/00
主分类号
H04L17/00
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代理人
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