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发明名称
ELECTROACOUSTIC TRANSDUCER
摘要
申请公布号
JPH0346500(A)
申请公布日期
1991.02.27
申请号
JP19890181883
申请日期
1989.07.14
申请人
SONY CORP
发明人
INANAGA KIYOFUMI;SAGAWA HIROYUKI
分类号
H04R9/00
主分类号
H04R9/00
代理机构
代理人
主权项
地址
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