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发明名称
PROTECTION NET FOR LOUDSPEAKER
摘要
申请公布号
JPH03172094(A)
申请公布日期
1991.07.25
申请号
JP19890312713
申请日期
1989.11.30
申请人
ONKYO CORP
发明人
SAEKI MICHIZO
分类号
H04R1/02
主分类号
H04R1/02
代理机构
代理人
主权项
地址
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