Improvements in and relating to photographic contact printing or copying apparatus,申请号GB19550008802-传众专利搜索

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发明名称	Improvements in and relating to photographic contact printing or copying apparatus
摘要
申请公布号	GB801277(A)	申请公布日期	1958.09.10
申请号	GB19550008802	申请日期	1955.03.25
申请人	E. N. MASON & SONS, LIMITED	发明人	WICKHAM REGINALD FRANK
分类号	G03B27/22	主分类号	G03B27/22
代理机构		代理人
主权项
地址

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