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发明名称
REMOTE UNDERWATER WELLHEAD CONNECTOR
摘要
申请公布号
US3521909(A)
申请公布日期
1970.07.28
申请号
USD3521909
申请日期
1965.05.19
申请人
RICHFIELD OIL CORP.
发明人
CICERO C. BROWN
分类号
E21B33/038;(IPC1-7):E21B33/00;E21B41/00;F16L25/00
主分类号
E21B33/038
代理机构
代理人
主权项
地址
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