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发明名称
Device for measuring the roughness of surfaces
摘要
申请公布号
US3049002(A)
申请公布日期
1962.08.14
申请号
US19590795205
申请日期
1959.02.24
申请人
HERMANN HEDIGER
发明人
HEDIGER HERMANN
分类号
G01B7/34
主分类号
G01B7/34
代理机构
代理人
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