Improvements in or relating to objectives suitable for photographic and like purposes,申请号GB19390027521-传众专利搜索

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发明名称	Improvements in or relating to objectives suitable for photographic and like purposes
摘要
申请公布号	GB535480(A)	申请公布日期	1941.04.10
申请号	GB19390027521	申请日期	1939.10.09
申请人	JOHN WILLIAM HASSELKUS;GORDON HENRY COOK	发明人
分类号	G02B9/12	主分类号	G02B9/12
代理机构		代理人
主权项
地址

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