BI-FREQUENCY ACOUSTIC TRANSDUCER AND ITS USE FOR THE PRODUCTION OF A LOW-FREQUENCY ACOUSTIC ANTENNA,申请号GB19910013834-传众专利搜索

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发明名称	BI-FREQUENCY ACOUSTIC TRANSDUCER AND ITS USE FOR THE PRODUCTION OF A LOW-FREQUENCY ACOUSTIC ANTENNA
摘要
申请公布号	GB2247767(A)	申请公布日期	1992.03.11
申请号	GB19910013834	申请日期	1991.06.27
申请人	* THOMSON-CSF	发明人	PHILIPPE * DUFOURCO
分类号	B06B1/06	主分类号	B06B1/06
代理机构		代理人
主权项
地址

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