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经营范围
发明名称
Measuring apparatus
摘要
申请公布号
US2149756(A)
申请公布日期
1939.03.07
申请号
US19370174478
申请日期
1937.11.13
申请人
ARENBERG DAVID L;ROOPE PERCY M
发明人
ARENBERG DAVID L.;ROOPE PERCY M.
分类号
G01R17/16
主分类号
G01R17/16
代理机构
代理人
主权项
地址
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