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发明名称
Anordning vid tonsignalmottagare
摘要
申请公布号
FI21503(A)
申请公布日期
1946.09.10
申请号
FI19440003360
申请日期
申请人
O/Y L.M. ERICSSON A/B
发明人
KRUSE OSKAR SIGURD NATAN
分类号
H04Q3/04;(IPC1-7):H04Q3/04
主分类号
H04Q3/04
代理机构
代理人
主权项
地址
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