Door viewer having two prisms and three lenses,申请号GB19880022840-传众专利搜索

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发明名称	Door viewer having two prisms and three lenses
摘要
申请公布号	GB2221549(A)	申请公布日期	1990.02.07
申请号	GB19880022840	申请日期	1988.09.29
申请人	CHUL HOON * AHN	发明人	CHUL HOON * AHN
分类号	G02B17/04;G02B25/04	主分类号	G02B17/04
代理机构		代理人
主权项
地址

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