Tools for wiping and cleaning well pipes,申请号US19560607205-传众专利搜索

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发明名称	Tools for wiping and cleaning well pipes
摘要
申请公布号	US2850754(A)	申请公布日期	1958.09.09
申请号	US19560607205	申请日期	1956.08.30
申请人	JIM O'HARA	发明人	DAVIS EMMETT ELISHA JACK
分类号	B08B9/023;E21B33/08	主分类号	B08B9/023
代理机构		代理人
主权项
地址

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