Apparatus for estimating the exposure time in photographic printing,申请号GB19310010339-传众专利搜索

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发明名称	Apparatus for estimating the exposure time in photographic printing
摘要
申请公布号	GB380430(A)	申请公布日期	1932.09.08
申请号	GB19310010339	申请日期	1931.04.08
申请人	DREM PRODUCTS CORPORATION	发明人
分类号	G01J1/12	主分类号	G01J1/12
代理机构		代理人
主权项
地址

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