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经营范围
发明名称
ACTIVE FILTER
摘要
申请公布号
HK64580(A)
申请公布日期
1980.11.21
申请号
HK19800000645
申请日期
1980.11.13
申请人
XETRON CORP
发明人
分类号
H04B1/04;(IPC1-7):H03C1/06
主分类号
H04B1/04
代理机构
代理人
主权项
地址
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