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| FlexSteps Ice Traction posted by HillSound posted date May 22, 2019 © Amazon, [online], [site visited Dec. 17, 2020]. Available from Internet, https://www.amazon.com/Hillsound-FlexSteps-Traction-Crampons-Stainless/dp/B07S4F8M 1 G?th= 1 (Year: 2019). |
| Spike For Walking posted by Yaktrax posted date Nov. 15, 2017 © Amazon, [online], [site visited Dec. 17, 2020]. Available from Internet, https://www.amazon.com/Yaktrax-Spikes-Walking-Large-X-Large/dp/B011B76JTY/ref=sr_1_132?dchild= 1 &keywords=crampon&qid=1608269966&sr=8-132 (Year: 2017). |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 29688198 | Apr 2019 | US |
| Child | 29800422 | US |