Improvements in devices for filing working drawings and similar articles,申请号GB19340011957-传众专利搜索

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发明名称	Improvements in devices for filing working drawings and similar articles
摘要
申请公布号	GB441831(A)	申请公布日期	1936.01.27
申请号	GB19340011957	申请日期	1934.04.20
申请人	GEORG ITTNER	发明人
分类号	B42F15/06	主分类号	B42F15/06
代理机构		代理人
主权项
地址

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