METHOD AND DEVICE FOR VARYING FIXEDDFOCUS PROJECTION MAGNIFICATION OF PROJECTOR,申请号JP19800021590-传众专利搜索

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发明名称	METHOD AND DEVICE FOR VARYING FIXEDDFOCUS PROJECTION MAGNIFICATION OF PROJECTOR
摘要
申请公布号	JPS56119124(A)	申请公布日期	1981.09.18
申请号	JP19800021590	申请日期	1980.02.25
申请人	DAINIPPON SCREEN MFG	发明人	TAKAGI TSUNEO
分类号	G02B7/28;G03B21/14;G03B27/34;G05D3/00	主分类号	G02B7/28
代理机构		代理人
主权项
地址

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