Perfectionnements apportés aux circuits de sonnerie et aux oscillateurs générateurs de courant de tonalité convenant à ces circuits,申请号FR19600828454-传众专利搜索

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发明名称	Perfectionnements apportés aux circuits de sonnerie et aux oscillateurs générateurs de courant de tonalité convenant à ces circuits
摘要
申请公布号	FR1258069(A)	申请公布日期	1961.04.07
申请号	FR19600828454	申请日期	1960.05.27
申请人	ASSOCIATED ELECTRICAL INDUSTRIES LIMITED	发明人
分类号	H04M19/04	主分类号	H04M19/04
代理机构		代理人
主权项
地址

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