Improvements in or relating to photographic copying apparatus with means for measuring the density of a negative,申请号GB19370030278-传众专利搜索

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发明名称	Improvements in or relating to photographic copying apparatus with means for measuring the density of a negative
摘要
申请公布号	GB504203(A)	申请公布日期	1939.04.21
申请号	GB19370030278	申请日期	1937.11.04
申请人	ZEISS IKON AKTIENGESELLSCHAFT	发明人
分类号	G01J1/42	主分类号	G01J1/42
代理机构		代理人
主权项
地址

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