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经营范围
发明名称
GRINDING WHEELS
摘要
申请公布号
GB1207766(A)
申请公布日期
1970.10.07
申请号
GB19690013014
申请日期
1969.03.12
申请人
NORTON COMPANY
发明人
分类号
B24D3/32
主分类号
B24D3/32
代理机构
代理人
主权项
地址
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