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发明名称
Hardness gauge
摘要
申请公布号
US2846065(A)
申请公布日期
1958.08.05
申请号
US19540475500
申请日期
1954.12.15
申请人
ALEXANDER JAMES M
发明人
ALEXANDER JAMES M.
分类号
G01N27/80;G01N27/90
主分类号
G01N27/80
代理机构
代理人
主权项
地址
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