GRADE AVERAGING DEVICE,申请号CAD892162-传众专利搜索

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发明名称	GRADE AVERAGING DEVICE
摘要
申请公布号	CA892162(A)	申请公布日期	1972.02.01
申请号	CAD892162	申请日期
申请人	CLYDE S. MUNDELL	发明人	CLYDE S. MUNDELL
分类号	G09B3/08;G09B23/00;(IPC1-7):G09B23/00	主分类号	G09B3/08
代理机构		代理人
主权项
地址

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