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发明名称
Apparatus for measuring hardness
摘要
申请公布号
US2834203(A)
申请公布日期
1958.05.13
申请号
US19550518283
申请日期
1955.06.27
申请人
GENERAL ELECTRIC COMPANY
发明人
SAMPSON ERNEST S.
分类号
G01N3/42
主分类号
G01N3/42
代理机构
代理人
主权项
地址
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