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经营范围
发明名称
Gravity measuring instrument
摘要
申请公布号
US2190959(A)
申请公布日期
1940.02.20
申请号
US19380235190
申请日期
1938.10.15
申请人
SHELL DEVELOPMENT COMPANY
发明人
THYSSEN-BORNEMISZA STEPHAN BARON VON
分类号
G01V7/08
主分类号
G01V7/08
代理机构
代理人
主权项
地址
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