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经营范围
发明名称
Transistor amplifier
摘要
申请公布号
US2920277(A)
申请公布日期
1960.01.05
申请号
US19550483623
申请日期
1955.01.24
申请人
NORTH AMERICAN PHILIPS COMPANY, INC.
发明人
VAN ADRIANUS JOHANNES WILHELMUS MARIE
分类号
H03F1/44;H03G3/30
主分类号
H03F1/44
代理机构
代理人
主权项
地址
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锅(2)
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容器（一）
