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发明名称
Improvements in or relating to the actuating members of electrodynamic loudspeakers,microphones and the like and the method of manufacturing such members
摘要
申请公布号
GB381803(A)
申请公布日期
1932.10.13
申请号
GB19320001801
申请日期
1932.01.20
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
H04R9/04
主分类号
H04R9/04
代理机构
代理人
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