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发明名称
Crystal filter networks
摘要
申请公布号
GB2006564(A)
申请公布日期
1979.05.02
申请号
GB19780033596
申请日期
1978.08.16
申请人
TELEFONGYAR
发明人
分类号
H03H9/54;(IPC1-7):H03H9/32
主分类号
H03H9/54
代理机构
代理人
主权项
地址
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