Improvements in typewriting machines,申请号GB19300011832-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	GB347469(A)	申请公布日期	1931.04.30
申请号	GB19300011832	申请日期	1930.04.14
申请人	BERNARD JOSEPH DOWD;ROYAL TYPEWRITER COMPANY	发明人
分类号	B41J29/02	主分类号	B41J29/02
代理机构		代理人
主权项
地址

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