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经营范围
发明名称
Improvements in or relating to grinding elements for grinding tools
摘要
申请公布号
GB817429(A)
申请公布日期
1959.07.29
申请号
GB19560031460
申请日期
1956.10.16
申请人
CARL KRUG
发明人
分类号
B24D7/16
主分类号
B24D7/16
代理机构
代理人
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