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发明名称
Gravity-indicating system
摘要
申请公布号
US1787132(A)
申请公布日期
1930.12.30
申请号
US19260111081
申请日期
1926.05.22
申请人
THE BROWN INSTRUMENT COMPANY
发明人
ORSDALE ALLEN A. VAN
分类号
G01N9/18
主分类号
G01N9/18
代理机构
代理人
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地址
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