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发明名称
CASSA ACUSTICA CON CARICAMENTO DEL TRASDUTTORE A TROMBA RIPIEGATA CON DOPPIA CAMERA DI COMPRESSIONE E IRRADIAMENTO COSTANTE DEL SUONO.
摘要
申请公布号
IT9060474(U1)
申请公布日期
1992.06.29
申请号
IT19900060474U
申请日期
1990.12.28
申请人
LONGHINO MAURIZIO
发明人
LONGHINO MAURIZIO
分类号
主分类号
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代理人
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