SLIP-TYPE ELEVATOR LOCKING MECHANISM,申请号EP19820630070-传众专利搜索

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发明名称	SLIP-TYPE ELEVATOR LOCKING MECHANISM
摘要
申请公布号	EP0072339(B1)	申请公布日期	1986.09.24
申请号	EP19820630070	申请日期	1982.07.14
申请人	HUGHES TOOL COMPANY	发明人	MCFADDEN, EDWARD J.
分类号	E21B19/06;E21B19/07;(IPC1-7):E21B19/07	主分类号	E21B19/06
代理机构		代理人
主权项
地址

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