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发明名称
Apparatus for determining gravity
摘要
申请公布号
US2179892(A)
申请公布日期
1939.11.14
申请号
US19370176353
申请日期
1937.11.24
申请人
BOLIDENS GRUVAKTIEBOLAG
发明人
LINDBLAD AXEL RUDOLF
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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