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经营范围
发明名称
Improvements relating to abrasive wheels
摘要
申请公布号
GB444141(A)
申请公布日期
1936.03.16
申请号
GB19350014462
申请日期
1935.05.17
申请人
NORTON COMPANY
发明人
分类号
B24D3/34
主分类号
B24D3/34
代理机构
代理人
主权项
地址
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