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经营范围
发明名称
DOUBLE-COIL LOUDSPEAKER
摘要
申请公布号
EP0471990(A3)
申请公布日期
1992.08.19
申请号
EP19910112202
申请日期
1991.07.20
申请人
NOKIA UNTERHALTUNGSELEKTRONIK (DEUTSCHLAND) GMBH
发明人
PROKISCH, JOERG
分类号
H04R3/00;H04R1/24;H04R9/04;(IPC1-7):H04R1/24
主分类号
H04R3/00
代理机构
代理人
主权项
地址
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