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发明名称
Device for measuring roughness of surfaces
摘要
申请公布号
US2672049(A)
申请公布日期
1954.03.16
申请号
US19490099056
申请日期
1949.06.14
申请人
HERMAN HALLENDORFF CARL JOHAN
发明人
HALLENDORFF CARL JOHAN HERMAN
分类号
G01B5/28
主分类号
G01B5/28
代理机构
代理人
主权项
地址
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