MEMBRANA PER ALTOPARLANTE.,申请号IT19800024556-传众专利搜索

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发明名称	MEMBRANA PER ALTOPARLANTE.
摘要
申请公布号	IT1209348(B)	申请公布日期	1989.07.16
申请号	IT19800024556	申请日期	1980.09.09
申请人	SEMPERIT AKTIENGESELLSCHAFT	发明人	PIETSCH HEINZ
分类号	H04R7/02;H04R7/20;(IPC1-7):H04R/	主分类号	H04R7/02
代理机构		代理人
主权项
地址

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