Color motion picture projection,申请号US19370169150-传众专利搜索

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发明名称	Color motion picture projection
摘要
申请公布号	US2168041(A)	申请公布日期	1939.08.01
申请号	US19370169150	申请日期	1937.10.15
申请人	O'GRADY FREDERICK T	发明人	O'GRADY FREDERICK T.
分类号	G03B33/00	主分类号	G03B33/00
代理机构		代理人
主权项
地址

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