Opaque picture viewer with angled lens,申请号US19570640953-传众专利搜索

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发明名称	Opaque picture viewer with angled lens
摘要
申请公布号	US2876674(A)	申请公布日期	1959.03.10
申请号	US19570640953	申请日期	1957.02.18
申请人	OHLHAVER GERHARD J	发明人	OHLHAVER GERHARD J.
分类号	G02B27/02	主分类号	G02B27/02
代理机构		代理人
主权项
地址

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