Depth-of-field indicator for varifocal objective,申请号US19610161660-传众专利搜索

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发明名称	Depth-of-field indicator for varifocal objective
摘要
申请公布号	US3221628(A)	申请公布日期	1965.12.07
申请号	US19610161660	申请日期	1961.12.22
申请人	JOSEF SCHNEIDER & CO. OPTISCHE WERKE	发明人	MAHN HERBERT
分类号	G02B7/04;G03B17/02	主分类号	G02B7/04
代理机构		代理人
主权项
地址

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