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发明名称
APPARATUS FOR DETERMINING THE TOUGHNESS OF ABRASIVE BODIES
摘要
申请公布号
CA323068(A)
申请公布日期
1932.06.07
申请号
CAD323068
申请日期
申请人
THE CARBORUNDUM COMPANY
发明人
ROMIE LEE MELTON;JOHN FITZPATRICK
分类号
主分类号
代理机构
代理人
主权项
地址
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