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经营范围
发明名称
Improved circuit arrangement for generating or amplifying electric oscillations
摘要
申请公布号
GB395596(A)
申请公布日期
1933.07.20
申请号
GB19320036109
申请日期
1932.12.20
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
H03B5/22
主分类号
H03B5/22
代理机构
代理人
主权项
地址
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