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发明名称
Ringspaltmagnet fuer elektrodynamische Lautsprecher
摘要
申请公布号
DE916953(C)
申请公布日期
1954.08.23
申请号
DE1952J005908
申请日期
1952.05.27
申请人
HELMUT JEDLICKA
发明人
分类号
H04R9/02
主分类号
H04R9/02
代理机构
代理人
主权项
地址
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