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发明名称
DUST CAP FOR SPEAKER
摘要
申请公布号
JPH03289300(A)
申请公布日期
1991.12.19
申请号
JP19900089585
申请日期
1990.04.03
申请人
ONKYO CORP
发明人
INOUE TOSHIHIDE
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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