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经营范围
发明名称
PIEZOELECTRIC SPEAKER
摘要
申请公布号
JPH07226999(A)
申请公布日期
1995.08.22
申请号
JP19940112840
申请日期
1994.05.26
申请人
SUPIA KK
发明人
TSUTSUMI SHIGERU
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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