Improvements in photographic apparatus and processes,申请号GB19540012935-传众专利搜索

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发明名称	Improvements in photographic apparatus and processes
摘要
申请公布号	GB764970(A)	申请公布日期	1957.01.02
申请号	GB19540012935	申请日期	1954.05.04
申请人	KELVIN & HUGHES LIMITED	发明人	TYLER FRANK;WALKER CHRISTOPHER HENRY CUMNER;TOWNLEY EUSTACE RAYMOND
分类号	G03B21/32	主分类号	G03B21/32
代理机构		代理人
主权项
地址

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