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发明名称
Improvements in or relating to devices for automatic level regulation in multi-channel carrier frequency line transmission systems
摘要
申请公布号
GB731680(A)
申请公布日期
1955.06.15
申请号
GB19520012774
申请日期
1952.05.21
申请人
TELEFONAKTIEBOLAGET L M ERICSSON
发明人
分类号
H04B3/12
主分类号
H04B3/12
代理机构
代理人
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