Photographic reproduction apparatus,申请号US19550523253-传众专利搜索

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发明名称	Photographic reproduction apparatus
摘要
申请公布号	US2832591(A)	申请公布日期	1958.04.29
申请号	US19550523253	申请日期	1955.07.20
申请人	NATIONAL GEOGRAPHIC SOCIETY	发明人	FILLINGAME JOHN E.
分类号	G03B27/58	主分类号	G03B27/58
代理机构		代理人
主权项
地址

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