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发明名称
PIEZOELECTRIC SPEAKER
摘要
申请公布号
JPH02288799(A)
申请公布日期
1990.11.28
申请号
JP19890110987
申请日期
1989.04.28
申请人
MURATA MFG CO LTD
发明人
TAKAYA TADASHI;KOUCHI HIROSHI
分类号
H04R17/00
主分类号
H04R17/00
代理机构
代理人
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地址
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