IMPROVED SLIP ASSEMBLY,申请号GB19890024102-传众专利搜索

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发明名称	IMPROVED SLIP ASSEMBLY
摘要
申请公布号	GB8924102(D0)	申请公布日期	1989.12.13
申请号	GB19890024102	申请日期	1989.10.26
申请人	OTIS ENGINEERING CORPORATION	发明人
分类号	E21B19/10	主分类号	E21B19/10
代理机构		代理人
主权项
地址

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