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发明名称
Procédé de fabrication de filaments et d'hélices simples ou multiples pour lampesà incandescence
摘要
申请公布号
FR888468(A)
申请公布日期
1943.12.14
申请号
FRD888468
申请日期
1942.11.19
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
H01K3/02
主分类号
H01K3/02
代理机构
代理人
主权项
地址
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