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发明名称
Récepteur pour impulsions à fréqeunce audible
摘要
申请公布号
BE612481(A1)
申请公布日期
1962.07.10
申请号
BE19620612481
申请日期
1962.01.10
申请人
N.V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
(IPC1-7):H04M
主分类号
(IPC1-7):H04M
代理机构
代理人
主权项
地址
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