Optical lens unit with image reversing means,申请号US19460705627-传众专利搜索

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发明名称	Optical lens unit with image reversing means
摘要
申请公布号	US2470277(A)	申请公布日期	1949.05.17
申请号	US19460705627	申请日期	1946.10.25
申请人	SUN CHEMICAL CORPORATION	发明人	WEKEMAN STEPHEN N.
分类号	G02B17/02	主分类号	G02B17/02
代理机构		代理人
主权项
地址

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