Proportional dividers or compasses,申请号GB19470001972-传众专利搜索

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发明名称	Proportional dividers or compasses
摘要
申请公布号	GB620545(A)	申请公布日期	1949.03.25
申请号	GB19470001972	申请日期	1947.01.22
申请人	JOHN FREDERICK LEETE	发明人
分类号	B43L9/08	主分类号	B43L9/08
代理机构		代理人
主权项
地址

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