Method of producing talking-motion-picture films,申请号US19270187026-传众专利搜索

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发明名称	Method of producing talking-motion-picture films
摘要
申请公布号	US1764938(A)	申请公布日期	1930.06.17
申请号	US19270187026	申请日期	1927.04.27
申请人	DE FOREST PHONOFILM CORPORATION	发明人	FOREST LEE DE
分类号	G03C5/14	主分类号	G03C5/14
代理机构		代理人
主权项
地址

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