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经营范围
发明名称
Halbleitendes Elektrodensystem, z. B. Transistor
摘要
申请公布号
AT183454(B)
申请公布日期
1955.10.10
申请号
ATD183454
申请日期
1954.05.19
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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