Improvements in and relating to process and means of selective distribution of an electric current to different apparatuses, principally to loud-speakers of a projection installation of sound films,申请号GB19480017795-传众专利搜索

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发明名称	Improvements in and relating to process and means of selective distribution of an electric current to different apparatuses, principally to loud-speakers of a projection installation of sound films
摘要
申请公布号	GB656669(A)	申请公布日期	1951.08.29
申请号	GB19480017795	申请日期	1948.07.01
申请人	GUY CLUTIER;MARC ANTOINE EUGENE ASSADA	发明人
分类号	G03B31/00	主分类号	G03B31/00
代理机构		代理人
主权项
地址

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