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发明名称
HARDNESS METER
摘要
申请公布号
JPS6420430(A)
申请公布日期
1989.01.24
申请号
JP19870174678
申请日期
1987.07.15
申请人
HITACHI LTD
发明人
TAKAHASHI FUMINOBU
分类号
G01N3/52;G01N3/00
主分类号
G01N3/52
代理机构
代理人
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