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发明名称
Bandfilter mit veränderlicher Bandbreite für drahtlose Empfangsgeräte.
摘要
申请公布号
AT153329(B)
申请公布日期
1938.05.10
申请号
ATD153329
申请日期
1936.07.25
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
主分类号
代理机构
代理人
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