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发明名称
UNDERWATER WELLHEAD FOUNDATION ASSEMBLY
摘要
申请公布号
CA786634(A)
申请公布日期
1968.06.04
申请号
CAD786634
申请日期
申请人
SHELL OIL COMPANY
发明人
BRUCE J. WATKINS;GLENN D. JOHNSON
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主分类号
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