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发明名称
SEISMOMETER
摘要
申请公布号
CA715205(A)
申请公布日期
1965.08.03
申请号
CAD715205
申请日期
申请人
SHELL OIL COMPANY
发明人
PETRUS T. ELSKAMP;JOHAN G. HAGEDOORN
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主分类号
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