DRILL SAMPLING DEVICE,申请号CAD458939-传众专利搜索

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发明名称	DRILL SAMPLING DEVICE
摘要
申请公布号	CA458939(A)	申请公布日期	1949.08.16
申请号	CAD458939	申请日期
申请人	AMERICAN SMELTING AND REFINING COMPANY	发明人	THUE CHRISTIAN OLSEN
分类号		主分类号
代理机构		代理人
主权项
地址

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