IMPROVEMENTS IN AND RELATING TO VIEWFINDER SYSTEMS,申请号GB19690027266-传众专利搜索

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发明名称	IMPROVEMENTS IN AND RELATING TO VIEWFINDER SYSTEMS
摘要
申请公布号	GB1269529(A)	申请公布日期	1972.04.06
申请号	GB19690027266	申请日期	1969.05.29
申请人	KABUSHIKI KAISHA RICOH	发明人
分类号	G02B13/00;G02B23/14	主分类号	G02B13/00
代理机构		代理人
主权项
地址

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