发明名称 FOOTWEAR
摘要 An article of footwear which has a rotatable portion on its sole or heel to enable a wearer of the footwear readily to pivot on one foot. The invention also includes a device having a rotatable ground-engaging portion and a support member for rotatably retaining said portion on an article of footwear.
申请公布号 US3680231(A) 申请公布日期 1972.08.01
申请号 USD3680231 申请日期 1970.12.07
申请人 JOSEPH FRANCIS DYMOND;EVESWELL PARK ROAD 发明人 JOSEPH FRANCIS DYMOND;EVESWELL PARK ROAD
分类号 A43B5/00;A43B5/12;A43B21/433;A43C15/16;(IPC1-7):A43B23/28 主分类号 A43B5/00
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