Reduced shock landing collar,申请号AU19980094229-传众专利搜索

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发明名称	Reduced shock landing collar
摘要
申请公布号	AU753516(B2)	申请公布日期	2002.10.17
申请号	AU19980094229	申请日期	1998.12.01
申请人	BAKER HUGHES INCORPORATED	发明人	DAVID E. HIRTH
分类号	E21B21/10;E21B34/14;(IPC1-7):E21B23/00	主分类号	E21B21/10
代理机构		代理人
主权项
地址

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