OPERATION OF KEYBOARD MACHINES,申请号GB19700041802-传众专利搜索

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发明名称	OPERATION OF KEYBOARD MACHINES
摘要
申请公布号	GB1359657(A)	申请公布日期	1974.07.10
申请号	GB19700041802	申请日期	1970.09.01
申请人	NATIONAL RESEARCH DEVELOPMENT CORPORATION	发明人
分类号	B41J5/08;(IPC1-7):41J5/08	主分类号	B41J5/08
代理机构		代理人
主权项
地址

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