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发明名称
Wheel for foot attachment
摘要
申请公布号
US2520793(A)
申请公布日期
1950.08.29
申请号
US19460704578
申请日期
1946.10.21
申请人
发明人
分类号
A63B25/04;A63C17/08;B62K1/00;B62K3/00
主分类号
A63B25/04
代理机构
代理人
主权项
地址
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