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经营范围
发明名称
Perfectionnements aux tubes à décharge électrique ou aux lampes à incandescence
摘要
申请公布号
FR899081(A)
申请公布日期
1945.05.18
申请号
FRD899081
申请日期
1943.10.22
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
H01J1/15;H01K1/02
主分类号
H01J1/15
代理机构
代理人
主权项
地址
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