Motion picture projection apparatus,申请号US19310571712-传众专利搜索

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发明名称	Motion picture projection apparatus
摘要
申请公布号	US1991957(A)	申请公布日期	1935.02.19
申请号	US19310571712	申请日期	1931.10.29
申请人	LUIGI RANIERL	发明人	RANIERL LUIGI
分类号	G03B41/08	主分类号	G03B41/08
代理机构		代理人
主权项
地址

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