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发明名称
Industrial portable valve facer
摘要
申请公布号
US2567320(A)
申请公布日期
1951.09.11
申请号
US19500170321
申请日期
1950.06.26
申请人
NIEL CHRISTENSEN
发明人
CHRISTENSEN NIEL
分类号
B24B15/04
主分类号
B24B15/04
代理机构
代理人
主权项
地址
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