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经营范围
发明名称
PIEZOELECTRIC SPEAKER
摘要
申请公布号
JPH0482400(A)
申请公布日期
1992.03.16
申请号
JP19900195787
申请日期
1990.07.24
申请人
MURATA MFG CO LTD
发明人
TAKAYA TADASHI
分类号
H04R17/00
主分类号
H04R17/00
代理机构
代理人
主权项
地址
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