Perfectionnements apportés aux dispositifs émetteurs de son,申请号FRD1012676-传众专利搜索

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发明名称	Perfectionnements apportés aux dispositifs émetteurs de son
摘要
申请公布号	FR1012676(A)	申请公布日期	1952.07.16
申请号	FRD1012676	申请日期	1950.01.31
申请人	MULTIMOTEUR	发明人	LEON JOSEPH
分类号	G10K11/28;H04R1/34	主分类号	G10K11/28
代理机构		代理人
主权项
地址

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