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发明名称
HARDNESS MEASUREMENT FOR COLD ROLLED STEEL PLATE USING RESONANCE FREQUENCY
摘要
申请公布号
KR1019950014739(B1)
申请公布日期
1995.12.14
申请号
KR1019920024970
申请日期
1992.12.22
申请人
发明人
分类号
主分类号
代理机构
代理人
主权项
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