Improvements in or relating to optical densitometers,申请号GB19310026168-传众专利搜索

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发明名称	Improvements in or relating to optical densitometers
摘要
申请公布号	GB381696(A)	申请公布日期	1932.10.13
申请号	GB19310026168	申请日期	1931.09.18
申请人	CLAUDE LANGDON RICHARDS;ERNEST BERNARD RIVINGTON BENSON;BAIRD TELEVISION LIMITED	发明人
分类号	G01N21/25	主分类号	G01N21/25
代理机构		代理人
主权项
地址

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