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发明名称
Hydraulic seismometer
摘要
申请公布号
US3023612(A)
申请公布日期
1962.03.06
申请号
US19600060817
申请日期
1960.10.06
申请人
ELDER GEORGE W
发明人
ELDER GEORGE W.
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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