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发明名称
MEJORAS INTRODUCIDAS EN LA FABRICACIoN DE LáMPARAS ELÉCTRICAS DE INCANDESCENCIA
摘要
申请公布号
ES180119(A1)
申请公布日期
1947.11.16
申请号
ES19190001801
申请日期
1947.10.13
申请人
PHILIPS'GLOEILAMPENFABRIEKEN, N. V.
发明人
分类号
(IPC1-7):H01
主分类号
(IPC1-7):H01
代理机构
代理人
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地址
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