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发明名称
COMPOSITE PIEZOELECTRIC LOUDSPEAKER
摘要
申请公布号
JPH0888898(A)
申请公布日期
1996.04.02
申请号
JP19940224477
申请日期
1994.09.20
申请人
HITACHI METALS LTD
发明人
TANAKA KIYOMI;YAMADA NOBUYUKI
分类号
H04R17/00;(IPC1-7):H04R17/00
主分类号
H04R17/00
代理机构
代理人
主权项
地址
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