Automatic light changer for motion picture printers,申请号US19580722949-传众专利搜索

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发明名称	Automatic light changer for motion picture printers
摘要
申请公布号	US2933031(A)	申请公布日期	1960.04.19
申请号	US19580722949	申请日期	1958.03.21
申请人	FRIEDEL RICHARD T	发明人	FRIEDEL RICHARD T.
分类号	G03B27/72	主分类号	G03B27/72
代理机构		代理人
主权项
地址

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