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发明名称
METHOD AND APPARATUS FOR IMPROVING SEISMIC IMPACT SIGNALS
摘要
申请公布号
CA819457(A)
申请公布日期
1969.08.05
申请号
CAD819457
申请日期
申请人
PETTY GEOPHYSICAL ENGINEERING COMPANY
发明人
WILLIAM H. MAYNE
分类号
主分类号
代理机构
代理人
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