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发明名称
Metal wheel
摘要
申请公布号
US1839453(A)
申请公布日期
1932.01.05
申请号
US19280268212
申请日期
1928.04.07
申请人
THE DAYTON STEEL FOUNDRY COMPANY
发明人
WALTHER GEORGE
分类号
B60B3/04
主分类号
B60B3/04
代理机构
代理人
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