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发明名称
Gravity meter
摘要
申请公布号
US2136219(A)
申请公布日期
1938.11.08
申请号
US19380187759
申请日期
1938.01.29
申请人
ALEXANDER SCHERBATSKOY SERGE
发明人
SCHERBATSKOY SERGE ALEXANDER
分类号
G01V7/00
主分类号
G01V7/00
代理机构
代理人
主权项
地址
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