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发明名称
Improvements in or relating to party line telecommunication systems
摘要
申请公布号
GB839288(A)
申请公布日期
1960.06.29
申请号
GB19580022565
申请日期
1958.07.14
申请人
TELEFONAKTIEBOLAGET L M ERICSSON
发明人
分类号
H04Q5/00
主分类号
H04Q5/00
代理机构
代理人
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地址
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