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发明名称
ACOUSTIC EQUIPMENT
摘要
申请公布号
JPH01143410(A)
申请公布日期
1989.06.06
申请号
JP19870299705
申请日期
1987.11.30
申请人
NEC CORP
发明人
AOKI TAMAO
分类号
H03G3/00
主分类号
H03G3/00
代理机构
代理人
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