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经营范围
发明名称
Measuring instrument
摘要
申请公布号
US2000625(A)
申请公布日期
1935.05.07
申请号
US19340725925
申请日期
1934.05.16
申请人
VAUGHAN JOHN F
发明人
VAUGHAN JOHN F.
分类号
G01B3/12
主分类号
G01B3/12
代理机构
代理人
主权项
地址
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