Perfectionnements apportés aux enceintes acoustiques pour haut-parleurs,申请号FRD1142754-传众专利搜索

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发明名称	Perfectionnements apportés aux enceintes acoustiques pour haut-parleurs
摘要
申请公布号	FR1142754(A)	申请公布日期	1957.09.23
申请号	FRD1142754	申请日期	1956.02.18
申请人		发明人	LEON JOSEPH-HENRI
分类号	H04R1/28	主分类号	H04R1/28
代理机构		代理人
主权项
地址

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