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发明名称
Device for grinding interior faces of tubes
摘要
申请公布号
US2551061(A)
申请公布日期
1951.05.01
申请号
US19470745530
申请日期
1947.05.02
申请人
SIMPSON FRANK R;SACCAS GEORGE N
发明人
SIMPSON FRANK R.;SACCAS GEORGE N.
分类号
B24B19/02
主分类号
B24B19/02
代理机构
代理人
主权项
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