Loudspeaker with electric talking machine and wireless set built therein,申请号GB19310028318-传众专利搜索

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发明名称	Loudspeaker with electric talking machine and wireless set built therein
摘要
申请公布号	GB369156(A)	申请公布日期	1932.03.17
申请号	GB19310028318	申请日期	1931.10.12
申请人	WALTER SEIDINGER	发明人
分类号	G11B31/00	主分类号	G11B31/00
代理机构		代理人
主权项
地址

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