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发明名称
Improvements relating to the production of seismic impact signals
摘要
申请公布号
GB1149863(A)
申请公布日期
1969.04.23
申请号
GB19660026633
申请日期
1966.06.15
申请人
PETTY GEOPHYSICAL ENGINEERING COMPANY
发明人
分类号
G01V1/147
主分类号
G01V1/147
代理机构
代理人
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地址
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