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发明名称
ABRASIVE ARTICLE
摘要
申请公布号
CA419894(A)
申请公布日期
1944.04.25
申请号
CAD419894
申请日期
申请人
GRANITE TRUST COMPANY;MINNESOTA MINING AND MANUFACTURING COMPANY
发明人
JAMES S. SMYSER
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主分类号
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