Set shoe for well casings,申请号US19340756855-传众专利搜索

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发明名称	Set shoe for well casings
摘要
申请公布号	US1995469(A)	申请公布日期	1935.03.26
申请号	US19340756855	申请日期	1934.12.10
申请人	BAKER OIL TOOLS, INC.	发明人	BURT CLARENCE E.
分类号	E21B17/14	主分类号	E21B17/14
代理机构		代理人
主权项
地址

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