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发明名称
DIAPHRAGM FOR LOUDSPEAKER OR MICROPHONE
摘要
申请公布号
EP0529143(A3)
申请公布日期
1993.07.07
申请号
EP19910114883
申请日期
1991.08.30
申请人
KELLER, FILIP
发明人
KELLER, FILIP
分类号
H04R1/30;H04R7/12;H04R9/06;(IPC1-7):H04R7/12
主分类号
H04R1/30
代理机构
代理人
主权项
地址
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