Tube rotating apparatus,申请号US19590838233-传众专利搜索

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发明名称	Tube rotating apparatus
摘要
申请公布号	US3059512(A)	申请公布日期	1962.10.23
申请号	US19590838233	申请日期	1959.09.04
申请人	DAUGHERTY HENRY J;MAXWELL ROBERT E	发明人	DAUGHERTY HENRY J.;MAXWELL ROBERT E.
分类号	E21B19/16	主分类号	E21B19/16
代理机构		代理人
主权项
地址

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