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经营范围
发明名称
ELECTROACOUSTIC TRANSDUCER
摘要
申请公布号
JPS6267999(A)
申请公布日期
1987.03.27
申请号
JP19850207601
申请日期
1985.09.19
申请人
SONY CORP
发明人
TAKASHIMA MITSURU
分类号
H04R9/06;H04R9/08
主分类号
H04R9/06
代理机构
代理人
主权项
地址
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