Device for teaching, particularly for the teaching of drawing,申请号US19600034709-传众专利搜索

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发明名称	Device for teaching, particularly for the teaching of drawing
摘要
申请公布号	US3045363(A)	申请公布日期	1962.07.24
申请号	US19600034709	申请日期	1960.06.08
申请人	EMILE KAESTLE CHARLES	发明人	KAESTLE CHARLES EMILE
分类号	A47B97/02;B43L13/16	主分类号	A47B97/02
代理机构		代理人
主权项
地址

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