Objective suitable for photographic purposes,申请号US19370147102-传众专利搜索

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发明名称	Objective suitable for photographic purposes
摘要
申请公布号	US2116264(A)	申请公布日期	1938.05.03
申请号	US19370147102	申请日期	1937.06.08
申请人	WILLIAM HASSELKUS JOHN;ARTHUR RICHMOND GEORGE	发明人	HASSELKUS JOHN WILLIAM;RICHMOND GEORGE ARTHUR
分类号	G02B13/04	主分类号	G02B13/04
代理机构		代理人
主权项
地址

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