Improvements in spectacles,申请号GB19430013791D-传众专利搜索

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发明名称	Improvements in spectacles
摘要
申请公布号	GB568279(A)	申请公布日期	1945.03.27
申请号	GB19430013791D	申请日期	1943.08.27
申请人	HARRY LESLIE LESSAR	发明人
分类号	G02C1/02;G02C1/04	主分类号	G02C1/02
代理机构		代理人
主权项
地址

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