IMPROVEMENTS IN AND RELATING TO NUMERICAL DISPLAY APPARATUS,申请号GB19680019069-传众专利搜索

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发明名称	IMPROVEMENTS IN AND RELATING TO NUMERICAL DISPLAY APPARATUS
摘要
申请公布号	GB1209090(A)	申请公布日期	1970.10.14
申请号	GB19680019069	申请日期	1968.04.23
申请人	KABUSHIKI KAISHA RICOH	发明人
分类号	H03K21/08	主分类号	H03K21/08
代理机构		代理人
主权项
地址

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