Improvements in or relating to spectacles,申请号GB19510001068-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	GB689997(A)	申请公布日期	1953.04.08
申请号	GB19510001068	申请日期	1951.01.15
申请人	NORMAN WILLIAM CHAPPELL	发明人
分类号	G02C1/04;G02C1/06	主分类号	G02C1/04
代理机构		代理人
主权项
地址

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