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发明名称
SUBSEA VALVE AND VALVE OPERATOR ASSEMBLY
摘要
申请公布号
US3466001(A)
申请公布日期
1969.09.09
申请号
USD3466001
申请日期
1968.01.15
申请人
A.C.F. IND. INC.
发明人
NORMAN A. NELSON
分类号
E21B33/037;E21B33/038;E21B34/04;E21B41/02;F16K31/122;(IPC1-7):F16K31/12;F16K43/00
主分类号
E21B33/037
代理机构
代理人
主权项
地址
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