MEANS FOR SUPPORTING SURFACE MEDIA IN A SKETCH BOX,申请号CAD465890-传众专利搜索

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发明名称	MEANS FOR SUPPORTING SURFACE MEDIA IN A SKETCH BOX
摘要
申请公布号	CA465890(A)	申请公布日期	1950.06.13
申请号	CAD465890	申请日期
申请人	REEVES AND SONS (CANADA) LIMITED	发明人	ERNEST J. T. HAYES;DONALD P. MILLER
分类号		主分类号
代理机构		代理人
主权项
地址

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