Improvements in and relating to photographic contact-printing machines,申请号GB19360007287-传众专利搜索

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发明名称	Improvements in and relating to photographic contact-printing machines
摘要
申请公布号	GB466838(A)	申请公布日期	1937.06.07
申请号	GB19360007287	申请日期	1936.03.11
申请人	J. HALDEN & CO. LIMITED;JOSEPH BROCTON HALDEN	发明人
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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