DIRECTIONAL ELECTRO-ACOUSTIC TRANSDUCERS COMPRISING A SEALED SHELL CONSISTING OF TWO PORTIONS,申请号GB19890009399-传众专利搜索

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发明名称	DIRECTIONAL ELECTRO-ACOUSTIC TRANSDUCERS COMPRISING A SEALED SHELL CONSISTING OF TWO PORTIONS
摘要
申请公布号	GB2263842(A)	申请公布日期	1993.08.04
申请号	GB19890009399	申请日期	1989.04.25
申请人	* ETAT FRANCAIS REPRESENTED BY THE GENERAL DELEGATE FOR ARMAMENTS	发明人	DIDIER * BOUCHER;CHARLES * POHLENZ
分类号	G10K9/12	主分类号	G10K9/12
代理机构		代理人
主权项
地址

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