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发明名称
Improvements in or relating to automatic frequency control arrangements for frequency-shift telegraph receiver
摘要
申请公布号
GB848559(A)
申请公布日期
1960.09.21
申请号
GB19570010091
申请日期
1957.03.27
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
分类号
H04L27/16
主分类号
H04L27/16
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