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发明名称
Relay device
摘要
申请公布号
US2801374(A)
申请公布日期
1957.07.30
申请号
US19560608151
申请日期
1956.09.05
申请人
TELEFONAKTIEBOLAGET L M ERICSSON
发明人
SVALA CARL GUNNAR
分类号
H03F3/04
主分类号
H03F3/04
代理机构
代理人
主权项
地址
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