IMPROVEMENTS IN OR RELATING TO TONE GENERATOR SYSTEMS,申请号GB19690049576-传众专利搜索

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发明名称	IMPROVEMENTS IN OR RELATING TO TONE GENERATOR SYSTEMS
摘要
申请公布号	GB1249019(A)	申请公布日期	1971.10.06
申请号	GB19690049576	申请日期	1969.10.09
申请人	THE MARCONI COMPANY LIMITED	发明人	WILLIAM ROBERT BETTS
分类号	G10H5/06	主分类号	G10H5/06
代理机构		代理人
主权项
地址

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