Improvements in and relating to security paper,申请号GB19360001378-传众专利搜索

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发明名称	Improvements in and relating to security paper
摘要
申请公布号	GB469023(A)	申请公布日期	1937.07.16
申请号	GB19360001378	申请日期	1936.01.16
申请人	DAVID RUSSELL	发明人
分类号	D21H21/46	主分类号	D21H21/46
代理机构		代理人
主权项
地址

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