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经营范围
发明名称
HINTER ODER IN DEM OHR ZU TRAGENDES HOERGERAET.
摘要
申请公布号
DE1912132(U)
申请公布日期
1965.03.18
申请号
DE1962N013419U
申请日期
1962.01.31
申请人
N. V. PHILIPS GLOEILAMPENFABRIEKEN
发明人
分类号
H04R25/02
主分类号
H04R25/02
代理机构
代理人
主权项
地址
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