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经营范围
发明名称
Electromagnetic wave filter
摘要
申请公布号
US2972722(A)
申请公布日期
1961.02.21
申请号
US19590816467
申请日期
1959.05.28
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
OHM EDWARD A.
分类号
H01P1/161;H01P1/20;H01P1/213
主分类号
H01P1/161
代理机构
代理人
主权项
地址
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