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发明名称
Seismograph amplitude control
摘要
申请公布号
US2336206(A)
申请公布日期
1943.12.07
申请号
US19390280766
申请日期
1939.06.23
申请人
SHELL DEVELOPMENT COMPANY
发明人
WOODS JOHN PRICE
分类号
G01V1/24
主分类号
G01V1/24
代理机构
代理人
主权项
地址
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