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经营范围
发明名称
Precision grinder
摘要
申请公布号
US1839627(A)
申请公布日期
1932.01.05
申请号
US19290388364
申请日期
1929.08.26
申请人
A. O. SMITH CORPORATION
发明人
WHITMAN FRED H.
分类号
B24B47/04
主分类号
B24B47/04
代理机构
代理人
主权项
地址
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