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经营范围
发明名称
Procédé de fabrication d'un noyau magnétique doué pour sa perméabilité initiale, d'un faible coefficient de température
摘要
申请公布号
FR1102229(A)
申请公布日期
1955.10.18
申请号
FRD1102229
申请日期
1954.04.08
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
C04B35/26
主分类号
C04B35/26
代理机构
代理人
主权项
地址
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