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发明名称
BAND-PASS FILTERS
摘要
申请公布号
GB1262360(A)
申请公布日期
1972.02.02
申请号
GB19690009960
申请日期
1969.02.25
申请人
WESTERN ELECTRIC COMPANY, INCORPORATED
发明人
FRANK ROGER BIES
分类号
H03H9/00;H03H9/54
主分类号
H03H9/00
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代理人
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