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发明名称
Abrasive
摘要
申请公布号
US2138882(A)
申请公布日期
1938.12.06
申请号
US19360092939
申请日期
1936.07.27
申请人
THE CARBORUNDUM COMPANY
发明人
ROBIE NORMAN P.
分类号
B24D11/00
主分类号
B24D11/00
代理机构
代理人
主权项
地址
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