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US08453349B2 Traction elements 有权
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Traction elements
Abstract:
Traction elements for an article of footwear can include stabilizer elements. An extendable traction element for an article of footwear can include an elongatable extender attached to another portion of a sole structure. An actuator can rest within the extender and cause elongation of the extender in response to a force from the foot of a wearer.
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