An optical apparatus comprising a focusing device,申请号GB19550002611-传众专利搜索

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发明名称	An optical apparatus comprising a focusing device
摘要
申请公布号	GB802482(A)	申请公布日期	1958.10.08
申请号	GB19550002611	申请日期	1955.01.28
申请人	MEOPTA	发明人
分类号	G02B27/40;G03B27/62	主分类号	G02B27/40
代理机构		代理人
主权项
地址

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