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发明名称
Improvements in and relating to abrasive materials and articles
摘要
申请公布号
GB772434(A)
申请公布日期
1957.04.10
申请号
GB19520019031
申请日期
1952.07.28
申请人
HARRY ARTHUR SIMPSON
发明人
分类号
B24D7/06;B24D18/00
主分类号
B24D7/06
代理机构
代理人
主权项
地址
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