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经营范围
发明名称
Amplifier
摘要
申请公布号
US1806281(A)
申请公布日期
1931.05.19
申请号
US19280258778
申请日期
1928.03.03
申请人
WESTINGHOUSE ELECTRIC AND MANUFACTURING COMPANY
发明人
DAVIS ROBERT L.;LITTLE DONALD G.
分类号
H04B1/036
主分类号
H04B1/036
代理机构
代理人
主权项
地址
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