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经营范围
发明名称
Frequency selective signal amplifier
摘要
申请公布号
US2756286(A)
申请公布日期
1956.07.24
申请号
US19480034996
申请日期
1948.06.24
申请人
JOHNSON FORD L;MCLOAD KENNETH W
发明人
JOHNSON FORD L.;MCLOAD KENNETH W.
分类号
H04B1/16
主分类号
H04B1/16
代理机构
代理人
主权项
地址
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