POWER OPERATED DRILL PIPE TONGS,申请号GB19760028700-传众专利搜索

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发明名称	POWER OPERATED DRILL PIPE TONGS
摘要
申请公布号	GB1519086(A)	申请公布日期	1978.07.26
申请号	GB19760028700	申请日期	1976.07.09
申请人	ECKEL MFG CO INC	发明人
分类号	E21B19/16;(IPC1-7):E21B19/16	主分类号	E21B19/16
代理机构		代理人
主权项
地址

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