GAUGE CLEANING DEVICE,申请号CAD296993-传众专利搜索

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发明名称	GAUGE CLEANING DEVICE
摘要
申请公布号	CA296993(A)	申请公布日期	1930.01.28
申请号	CAD296993	申请日期
申请人	CONWAY ALLEN HALL	发明人	CONWAY ALLEN HALL
分类号		主分类号
代理机构		代理人
主权项
地址

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