Improvements in typewriting machines,申请号GB19290034547-传众专利搜索

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发明名称	Improvements in typewriting machines
摘要
申请公布号	GB336833(A)	申请公布日期	1930.10.23
申请号	GB19290034547	申请日期	1929.11.12
申请人	ROYAL TYPEWRITER COMPANY, INC.	发明人
分类号	B41J25/24	主分类号	B41J25/24
代理机构		代理人
主权项
地址

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