Improvement in spectacle wings,申请号GB19300007365-传众专利搜索

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发明名称	Improvement in spectacle wings
摘要
申请公布号	GB345075(A)	申请公布日期	1931.03.19
申请号	GB19300007365	申请日期	1930.03.06
申请人	GEORGE PRESCOTT, SENIOR;GEORGE PRESCOTT, JUNIOR	发明人
分类号	G02C5/22	主分类号	G02C5/22
代理机构		代理人
主权项
地址

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