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发明名称
Traction wheel
摘要
申请公布号
US1885376(A)
申请公布日期
1932.11.01
申请号
US19290337386
申请日期
1929.02.04
申请人
B. F. AVERY & SONS
发明人
RAY CHARLES T.
分类号
B60B15/02
主分类号
B60B15/02
代理机构
代理人
主权项
地址
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