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经营范围
发明名称
Wheel Apparatus
摘要
<p>A wheel is designed to overcome special ground surfaces, like stairs. A carrying device can be equipped with at least one of such wheels so that a user can haul the carrying device to pass through.</p>
申请公布号
EP1884440(A2)
申请公布日期
2008.02.06
申请号
EP20070112240
申请日期
2007.07.11
申请人
CHANG, HSUEH-ER
发明人
CHANG, HSUEH-ER
分类号
B62B5/02
主分类号
B62B5/02
代理机构
代理人
主权项
地址
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