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发明名称
Vorrichtung mit mindestens einem ferromagnetischen Teil mit einer Anfangspermeabilität von wenigstens 500 und einem in Form eines dünnen Körpers gestalteten Dauermagneten
摘要
申请公布号
CH313462(A)
申请公布日期
1956.04.15
申请号
CHD313462
申请日期
1951.08.27
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
THOMAS VAN URK,AREND;RADEMAKERS,ADRIAAN
分类号
H01F1/03;H01F7/02;H04R9/02
主分类号
H01F1/03
代理机构
代理人
主权项
地址
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