Well tool shock absorber,申请号US19660539393-传众专利搜索

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发明名称	Well tool shock absorber
摘要
申请公布号	US3381780(A)	申请公布日期	1968.05.07
申请号	US19660539393	申请日期	1966.04.01
申请人	SCHLUMBERGER TECHNOLOGY CORPORATION	发明人	STACHOWIAK JOHN E.
分类号	E21B17/07	主分类号	E21B17/07
代理机构		代理人
主权项
地址

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