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经营范围
发明名称
VARIABLE WAVE GENERATOR
摘要
申请公布号
CA431065(A)
申请公布日期
1945.11.06
申请号
CAD431065
申请日期
申请人
N.V. PHILIPS GLOEILAMPENFABRIEKEN;RADIO CORPORATION OF AMERICA
发明人
MENNO WOLF
分类号
主分类号
代理机构
代理人
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