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经营范围
发明名称
Manufacture of abrasive articles
摘要
申请公布号
US1944184(A)
申请公布日期
1934.01.23
申请号
US19310573004
申请日期
1931.11.04
申请人
THE CARBORUNDUM COMPANY
发明人
KIRCHNER HENRY P.
分类号
B24D5/06;B24D5/16
主分类号
B24D5/06
代理机构
代理人
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