Talking motion picture apparatus,申请号US19340716808-传众专利搜索

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发明名称	Talking motion picture apparatus
摘要
申请公布号	US2114608(A)	申请公布日期	1938.04.19
申请号	US19340716808	申请日期	1934.03.22
申请人	UNITED RESEARCH CORPORATION	发明人	ROSS ERNEST
分类号	G03B31/00	主分类号	G03B31/00
代理机构		代理人
主权项
地址

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