Lens ventilation in goggles structure,申请号US19490097864-传众专利搜索

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发明名称	Lens ventilation in goggles structure
摘要
申请公布号	US2654090(A)	申请公布日期	1953.10.06
申请号	US19490097864	申请日期	1949.06.08
申请人	CHRISTENSEN WILLIAM R;CROSS CHESTER E	发明人	CHRISTENSEN WILLIAM R.;CROSS CHESTER E.
分类号	A61F9/02	主分类号	A61F9/02
代理机构		代理人
主权项
地址

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