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发明名称
Manufacture of abrasives
摘要
申请公布号
US2318570(A)
申请公布日期
1943.05.04
申请号
US19300422065
申请日期
1930.01.20
申请人
MINNESOTA MINING & MANUFACTURING COMPANY
发明人
CARLTON RICHARD PAUL
分类号
B24D11/00
主分类号
B24D11/00
代理机构
代理人
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