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发明名称
SPEAKER
摘要
申请公布号
JPH01252099(A)
申请公布日期
1989.10.06
申请号
JP19880079551
申请日期
1988.03.31
申请人
SONY CORP
发明人
FUJIHIRA MASAO;ABE KENSAKU
分类号
H04R7/12
主分类号
H04R7/12
代理机构
代理人
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