Apparatus for and method of loosening a threaded connection,申请号US19550547772-传众专利搜索

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发明名称	Apparatus for and method of loosening a threaded connection
摘要
申请公布号	US2884065(A)	申请公布日期	1959.04.28
申请号	US19550547772	申请日期	1955.11.18
申请人	HOUSTON OIL FIELD MATERIAL COMPANY, INC.	发明人	BENDER JOHN C.
分类号	E21B31/107	主分类号	E21B31/107
代理机构		代理人
主权项
地址

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