Improvements in and relating to erasing devices,申请号GB19320024681-传众专利搜索

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发明名称	Improvements in and relating to erasing devices
摘要
申请公布号	GB405370(A)	申请公布日期	1934.02.08
申请号	GB19320024681	申请日期	1932.09.05
申请人	JANET MAIN MACCULLOCH	发明人
分类号	B43L19/00	主分类号	B43L19/00
代理机构		代理人
主权项
地址

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