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发明名称
Gesinterter, elektrischer Widerstand mit einem negativem Temperaturkoeffizienten
摘要
申请公布号
AT196017(B)
申请公布日期
1958.02.25
申请号
ATD196017
申请日期
1957.01.28
申请人
N.V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
主分类号
代理机构
代理人
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