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发明名称
TRANSDUTOR ULTRA-SONICO PIEZO-ELETRICO MINIATURIZADO
摘要
申请公布号
BR9104549(A)
申请公布日期
1993.04.27
申请号
BR1991PI04549
申请日期
1991.10.18
申请人
HUGO PORTO PEDROSA
发明人
HUGO PORTO PEDROSA
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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