Projection apparatus for multiple record talking machines,申请号US19400366627-传众专利搜索

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法人/股东/高管

发明名称	Projection apparatus for multiple record talking machines
摘要
申请公布号	US2262410(A)	申请公布日期	1941.11.11
申请号	US19400366627	申请日期	1940.11.22
申请人	AL SEMELS	发明人	SEMELS AL
分类号	G11B7/00	主分类号	G11B7/00
代理机构		代理人
主权项
地址

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