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经营范围
发明名称
Spring wheel
摘要
申请公布号
US1828322(A)
申请公布日期
1931.10.20
申请号
US19290384563
申请日期
1929.08.09
申请人
KAWALLE WILLIAM E
发明人
KAWALLE WILLIAM E.
分类号
B60B9/04
主分类号
B60B9/04
代理机构
代理人
主权项
地址
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