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发明名称
Diamond indenter for testing the hardness of metals
摘要
申请公布号
GB610890(A)
申请公布日期
1948.10.21
申请号
GB19460011893
申请日期
1946.04.17
申请人
FELIX FROMHOLT
发明人
分类号
G01N3/42
主分类号
G01N3/42
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代理人
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