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发明名称
Device for measuring microhardness of materials
摘要
申请公布号
US3191424(A)
申请公布日期
1965.06.29
申请号
US19610147318
申请日期
1961.10.24
申请人
NIPPON ROGAKU K. K.;COHEN CO., LTD.
发明人
OHISHI SAKAE
分类号
G01N3/54
主分类号
G01N3/54
代理机构
代理人
主权项
地址
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