RETI ELETTRICHE PER LA COMPENSAZIONE ENERGETICA DI DIFFUSORI ACUSTICI.,申请号IT19870021790-传众专利搜索

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发明名称	RETI ELETTRICHE PER LA COMPENSAZIONE ENERGETICA DI DIFFUSORI ACUSTICI.
摘要
申请公布号	IT8721790(D0)	申请公布日期	1987.09.03
申请号	IT19870021790	申请日期	1987.09.03
申请人	MAFFIOLI FRANCESCO NICOLAO UMBERTO	发明人	FRANCESCO MAFFIOLI;UMBERTO NICOLAO
分类号	H03H	主分类号	H03H
代理机构		代理人
主权项
地址

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