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发明名称
Résistance à coefficient de température négatif
摘要
申请公布号
FR1039481(A)
申请公布日期
1953.10.07
申请号
FRD1039481
申请日期
1951.07.09
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
H01C7/04
主分类号
H01C7/04
代理机构
代理人
主权项
地址
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