Improvements relating to files for letters or documents,申请号GB19330025818-传众专利搜索

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发明名称	Improvements relating to files for letters or documents
摘要
申请公布号	GB425554(A)	申请公布日期	1935.03.18
申请号	GB19330025818	申请日期	1933.09.18
申请人	THOROTON GEORGE EAST	发明人
分类号	B42F7/08	主分类号	B42F7/08
代理机构		代理人
主权项
地址

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