Improvements in or relating to spectacles,申请号GB19370021225-传众专利搜索

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发明名称	Improvements in or relating to spectacles
摘要
申请公布号	GB499804(A)	申请公布日期	1939.01.30
申请号	GB19370021225	申请日期	1937.07.30
申请人	SAMUEL WALTER HENRY MARYON;J. & R. FLEMING LIMITED	发明人
分类号	G02C5/14	主分类号	G02C5/14
代理机构		代理人
主权项
地址

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