Lens protective device utilizing dual air streams,申请号US19630257301-传众专利搜索

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发明名称	Lens protective device utilizing dual air streams
摘要
申请公布号	US3310356(A)	申请公布日期	1967.03.21
申请号	US19630257301	申请日期	1963.02.08
申请人	GENERAL PRECISION, INC.	发明人	BORBERG WILLY
分类号	G02B27/00	主分类号	G02B27/00
代理机构		代理人
主权项
地址

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