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发明名称
SURFACE SUPPLIED FLUID CONTROLLED OR TOOL-OPERATED SUBSURFACESAFETY VALVE
摘要
申请公布号
AU6562986(A)
申请公布日期
1987.08.13
申请号
AU19860065629
申请日期
1986.11.21
申请人
OTIS ENGINEERING CORP.
发明人
MICHAEL B. VINZANT;PHILLIP S. SIZER;RONALD K. CHURCHMAN;RENNIE L. DICKSON;RODDIE R. SMITH
分类号
E21B34/00;E21B34/10
主分类号
E21B34/00
代理机构
代理人
主权项
地址
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