Improvements in or relating to sound producing devices,申请号GB19590027175-传众专利搜索

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发明名称	Improvements in or relating to sound producing devices
摘要
申请公布号	GB868943(A)	申请公布日期	1961.05.25
申请号	GB19590027175	申请日期	1959.08.07
申请人	KEIICHI SHINTAKU	发明人
分类号	G10K9/04	主分类号	G10K9/04
代理机构		代理人
主权项
地址

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