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发明名称
Low frequency seismometer
摘要
申请公布号
US2788512(A)
申请公布日期
1957.04.09
申请号
US19540435540
申请日期
1954.06.09
申请人
SHELL DEVELOPMENT COMPANY
发明人
REICHERT WILHELMUS J.
分类号
G01V1/18
主分类号
G01V1/18
代理机构
代理人
主权项
地址
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