Zoom lens system for microfilm projectors,申请号US19640370517-传众专利搜索

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发明名称	Zoom lens system for microfilm projectors
摘要
申请公布号	US3360325(A)	申请公布日期	1967.12.26
申请号	US19640370517	申请日期	1964.05.27
申请人	BELL & HOWELL COMPANY	发明人	GUSTAFSON DARRYL E.
分类号	G02B15/14;G02B17/02	主分类号	G02B15/14
代理机构		代理人
主权项
地址

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