Process for freeing stuck drilling tools,申请号US19560597877-传众专利搜索

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发明名称	Process for freeing stuck drilling tools
摘要
申请公布号	US2900026(A)	申请公布日期	1959.08.18
申请号	US19560597877	申请日期	1956.07.16
申请人	SHELL DEVELOPMENT COMPANY	发明人	TRUSHEIM FERDINAND H. D. A.
分类号	C09K8/02;C09K8/528	主分类号	C09K8/02
代理机构		代理人
主权项
地址

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