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发明名称
Coil system more particularly intermediate-frequency band-pass filters
摘要
申请公布号
US2849690(A)
申请公布日期
1958.08.26
申请号
US19550552568
申请日期
1955.12.12
申请人
NORTH AMERICAN PHILIPS COMPANY, INC.
发明人
VERHOEVEN LAMBERTUS
分类号
H03H7/01
主分类号
H03H7/01
代理机构
代理人
主权项
地址
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