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经营范围
发明名称
Traction wheel
摘要
申请公布号
US2079471(A)
申请公布日期
1937.05.04
申请号
US19350056310
申请日期
1935.12.27
申请人
UNSELD JOHN M
发明人
UNSELD JOHN M.
分类号
B60B15/16
主分类号
B60B15/16
代理机构
代理人
主权项
地址
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