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经营范围
发明名称
Centerless grinding device
摘要
申请公布号
US2547290(A)
申请公布日期
1951.04.03
申请号
US19480032434
申请日期
1948.06.11
申请人
STEVENS FRANK J
发明人
STEVENS FRANK J.
分类号
B24B5/32
主分类号
B24B5/32
代理机构
代理人
主权项
地址
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