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发明名称
Conduit section
摘要
申请公布号
US3324894(A)
申请公布日期
1967.06.13
申请号
US19640420066
申请日期
1964.12.21
申请人
NEWPORT NEWS SHIPBUILDING AND DRY DOCK COMPANY
发明人
JR. JOSEPH D. DEAL,
分类号
E21C45/00;F16L1/10;F16L9/04;F16L23/02
主分类号
E21C45/00
代理机构
代理人
主权项
地址
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