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发明名称
TRANSDUCTEUR ULTRASONORE
摘要
申请公布号
FR2559985(B1)
申请公布日期
1989.06.30
申请号
FR19850002441
申请日期
1985.02.20
申请人
NGK SPARK PLUG CO
发明人
ITO TOSHIHARU;OZEKI EIJI;OKADA KOZO
分类号
B06B1/06;G10K11/00;G10K11/02;H01J61/32;(IPC1-7):H04R17/10
主分类号
B06B1/06
代理机构
代理人
主权项
地址
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