METHOD AND APPARATUS FOR CONTROLLING HYDRAULIC DRIFTERS,申请号GB19740023891-传众专利搜索

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发明名称	METHOD AND APPARATUS FOR CONTROLLING HYDRAULIC DRIFTERS
摘要
申请公布号	GB1458094(A)	申请公布日期	1976.12.08
申请号	GB19740023891	申请日期	1974.05.29
申请人	DRESSER INDUSTRIES INC	发明人
分类号	B23B41/00;E21B1/00;E21B1/26;E21B3/00;E21B6/00;E21B19/08;E21B19/086;E21B44/06;F15B11/20;(IPC1-7):B25D9/16	主分类号	B23B41/00
代理机构		代理人
主权项
地址

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