Slip resistant footwear
作者： Peter Sing
DOI:
关键词:
摘要: Slip resistant footwear comprising a sole having top face and bottom for contact with the surface to be walked upon; vacuum chamber whose volume decreases when force is applied of sole; passageway connecting chamber; means permitting passage air from atmosphere operative decreases; securing proximate foot user.
lens.org 参考文章(7)
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John A Hall, Cushion top lift for heels. ,(1914)
H Marker, Shoe,particularly sport shoe ,(1981)
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