Improvements in or relating to spectacle lenses,申请号GB19380016330-传众专利搜索

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发明名称	Improvements in or relating to spectacle lenses
摘要
申请公布号	GB509954(A)	申请公布日期	1939.07.25
申请号	GB19380016330	申请日期	1938.08.22
申请人	OSMOND PHILIP RAPHAEL	发明人
分类号	G02C1/06	主分类号	G02C1/06
代理机构		代理人
主权项
地址

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