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发明名称
Method of making rubber bonded abrasive articles
摘要
申请公布号
US1977748(A)
申请公布日期
1934.10.23
申请号
US19310509035
申请日期
1931.01.15
申请人
NORTON COMPANY
发明人
WEBSTER DUANE E.
分类号
B24D3/24
主分类号
B24D3/24
代理机构
代理人
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