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经营范围
发明名称
DIFFERENCE AMPLIFIER
摘要
申请公布号
CA564572(A)
申请公布日期
1958.10.14
申请号
CAD564572
申请日期
申请人
N.V. PHILIPS GLOEILAMPENFABRIEKEN
发明人
PIETER J. W. JOCHEMS;GERRIT KLEIN
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主分类号
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