Continuous sound two-disc phonographic machine,申请号GB19290039610-传众专利搜索

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发明名称	Continuous sound two-disc phonographic machine
摘要
申请公布号	GB351924(A)	申请公布日期	1931.07.02
申请号	GB19290039610	申请日期	1929.12.27
申请人	PIER FAUSTO BARELLI	发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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