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发明名称
Improvements in and relating to a drilling rig for seismological drilling
摘要
申请公布号
GB804247(A)
申请公布日期
1958.11.12
申请号
GB19550024707
申请日期
1955.08.29
申请人
PILING AND CONSTRUCTION COMPANY LIMITED
发明人
ROSS VICTOR NORMAN;HARTLEY HERBERT LOWELL
分类号
E21B19/08
主分类号
E21B19/08
代理机构
代理人
主权项
地址
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