Adjustable ellipse compass,申请号US19440535785-传众专利搜索

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发明名称	Adjustable ellipse compass
摘要
申请公布号	US2494557(A)	申请公布日期	1950.01.17
申请号	US19440535785	申请日期	1944.05.16
申请人	IRICK HADEN R	发明人	IRICK HADEN R.
分类号	B43L11/055	主分类号	B43L11/055
代理机构		代理人
主权项
地址

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