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经营范围
发明名称
ULTRA SHORT WAVE AMPLIFIER
摘要
申请公布号
CA443669(A)
申请公布日期
1947.08.12
申请号
CAD443669
申请日期
申请人
RADIO CORPORATION OF AMERICA
发明人
MAXIMILIAAN J. O. STRUTT;ALDERT VAN DER ZIEL
分类号
主分类号
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代理人
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