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发明名称
THERMIONIC CATHODE
摘要
申请公布号
CA530010(A)
申请公布日期
1956.09.04
申请号
CAD530010
申请日期
申请人
N.V. PHILIPS GLOEILAMPENFABRIEKEN
发明人
PATRICK P. COPPOLA;DOBBS FERRY;RAY COLLIER HUGHES
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主分类号
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