Eyeglasses for welders' helmets,申请号US19400351789-传众专利搜索

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发明名称	Eyeglasses for welders' helmets
摘要
申请公布号	US2263116(A)	申请公布日期	1941.11.18
申请号	US19400351789	申请日期	1940.08.08
申请人	ANDREWS JOHN S	发明人	ANDREWS JOHN S.
分类号	A61F9/06	主分类号	A61F9/06
代理机构		代理人
主权项
地址

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