Improvements relating to the method of folding maps and the like,申请号GB19480022700-传众专利搜索

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发明名称	Improvements relating to the method of folding maps and the like
摘要
申请公布号	GB660804(A)	申请公布日期	1951.11.14
申请号	GB19480022700	申请日期	1948.08.27
申请人	GERHARD FALK	发明人
分类号	G09B29/04	主分类号	G09B29/04
代理机构		代理人
主权项
地址

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