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经营范围
发明名称
Means for neutralizing feedback in a radio amplifier
摘要
申请公布号
US2517294(A)
申请公布日期
1950.08.01
申请号
US19490081931
申请日期
1949.03.17
申请人
PHILCO CORPORATION
发明人
ELAND ROBERT C. A.
分类号
H03F1/16
主分类号
H03F1/16
代理机构
代理人
主权项
地址
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