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发明名称
ABRASIVE ARTICLE
摘要
申请公布号
CA443230(A)
申请公布日期
1947.07.29
申请号
CAD443230
申请日期
申请人
THE CARBORUNDUM COMPANY
发明人
NORMAN PIERCE ROBIE;OSBORNE LEBARON MAHLMAN
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主分类号
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