Improvements in apparatus for the electrical evaluation of linear expressions,申请号GB19420002451-传众专利搜索

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发明名称	Improvements in apparatus for the electrical evaluation of linear expressions
摘要
申请公布号	GB561831(A)	申请公布日期	1944.06.07
申请号	GB19420002451	申请日期	1942.02.25
申请人	HASLER S.A. MANUFACTURE D'APPAREILS TELEPHONIQUES ET DE PRECISION	发明人
分类号	G06G7/22	主分类号	G06G7/22
代理机构		代理人
主权项
地址

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