Improvements in or relating to longitudinal slide-rules,申请号GB19320034598-传众专利搜索

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发明名称	Improvements in or relating to longitudinal slide-rules
摘要
申请公布号	GB413308(A)	申请公布日期	1934.07.09
申请号	GB19320034598	申请日期	1932.12.07
申请人	ALGERNON WILLIAM DARGUE;FREDERICK LEWIN DARGUE	发明人
分类号	G06G1/04	主分类号	G06G1/04
代理机构		代理人
主权项
地址

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