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发明名称
METHOD OF AND APPARATUS FOR CUTTING AND RECOVERING OF SUBMARINE SURFACE CASING AND GUIDE BASE
摘要
申请公布号
GB1498603(A)
申请公布日期
1978.01.25
申请号
GB19760003123
申请日期
1976.01.27
申请人
A Z INT TOOL CO
发明人
分类号
E21B29/12;E21B31/16;(IPC1-7):E21B29/00
主分类号
E21B29/12
代理机构
代理人
主权项
地址
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