Improvements in or relating to photomechanical processes,申请号GB19510021158-传众专利搜索

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发明名称	Improvements in or relating to photomechanical processes
摘要
申请公布号	GB684663(A)	申请公布日期	1952.12.24
申请号	GB19510021158	申请日期	1952.05.19
申请人	MCCORQUODALE & COMPANY LIMITED	发明人	GRESHAM DONALD CHARLES
分类号	G03C5/50;G03F3/04	主分类号	G03C5/50
代理机构		代理人
主权项
地址

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