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发明名称
GUARD FOR GRINDING WHEELS
摘要
申请公布号
CA541028(A)
申请公布日期
1957.05.21
申请号
CAD541028
申请日期
申请人
OLAV M. KROGSGAARD
发明人
OLAV M. KROGSGAARD
分类号
主分类号
代理机构
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