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经营范围
发明名称
ELECTRON-DISCHARGE TUBE
摘要
申请公布号
CA499214(A)
申请公布日期
1954.01.12
申请号
CAD499214
申请日期
申请人
N.V. PHILIPS GLOEILAMPENFABRIEKEN
发明人
ADRIANUS J. W. M. VAN OVERBEEK
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主分类号
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