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经营范围
发明名称
Procédé d'obtention de vitamine d.
摘要
申请公布号
FR40142(E)
申请公布日期
1932.04.20
申请号
FRD40142
申请日期
1931.04.23
申请人
N.V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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