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经营范围
发明名称
Grinding and polishing attachment for rolling mills
摘要
申请公布号
US1904385(A)
申请公布日期
1933.04.18
申请号
US19280274953
申请日期
1928.05.03
申请人
FRANK S. SYMMONDS
发明人
POLING HARRY A.
分类号
B21B28/04;B24B5/36
主分类号
B21B28/04
代理机构
代理人
主权项
地址
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