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发明名称
Abrasive article
摘要
申请公布号
US2021160(A)
申请公布日期
1935.11.19
申请号
US19330678822
申请日期
1933.07.03
申请人
THE CARBORUNDUM COMPANY
发明人
VANIER OLIVER
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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