Disk slide rule with decimal point indicator,申请号US19520264922-传众专利搜索

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发明名称	Disk slide rule with decimal point indicator
摘要
申请公布号	US2658671(A)	申请公布日期	1953.11.10
申请号	US19520264922	申请日期	1952.01.04
申请人	ANDRE ALLAIS JULIEN MARIE	发明人	ALLAIS JULIEN MARIE ANDRE
分类号	G06G1/00	主分类号	G06G1/00
代理机构		代理人
主权项
地址

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