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经营范围
发明名称
Device for gauging surface characteristics
摘要
申请公布号
US2901906(A)
申请公布日期
1959.09.01
申请号
US19550496489
申请日期
1955.03.24
申请人
THE SHEFFIELD CORPORATION
发明人
III NELSON EMMONS
分类号
G01B13/22
主分类号
G01B13/22
代理机构
代理人
主权项
地址
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