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发明名称
ABRASIVE ARTICLE MAKING METHOD
摘要
申请公布号
CA443524(A)
申请公布日期
1947.08.05
申请号
CAD443524
申请日期
申请人
THE CARBORUNDUM COMPANY
发明人
FREDERICK ANTHONY UPPER
分类号
主分类号
代理机构
代理人
主权项
地址
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