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发明名称
ALUMINOUS ABRASIVE MATERIAL
摘要
申请公布号
CA458067(A)
申请公布日期
1949.07.12
申请号
CAD458067
申请日期
申请人
THE CARBORUNDUM COMPANY
发明人
HENRY NICHOLAS BAUMANN, JR.;CHARLES EDWARD WOODDELL
分类号
主分类号
代理机构
代理人
主权项
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