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经营范围
发明名称
Magnetic or dielectric amplifier
摘要
申请公布号
US2835747(A)
申请公布日期
1958.05.20
申请号
US19540415939
申请日期
1954.03.12
申请人
NORTH AMERICAN PHILIPS COMPANY, INC.
发明人
CLUWEN JOHANNES MEIJER
分类号
H03F9/00;H03F9/02;H03F11/00
主分类号
H03F9/00
代理机构
代理人
主权项
地址
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