Six-legged walking harvester “Plusjack” was developed in 1999 by the “Plustech” Finnish company (the advanced research and development unit of “Timberjack”, now a “John Deere” company).[1][7] Plusjack Walking harvester.    [5] Harvester has been designed to navigate the difficult terrain (e.g. steep slopes), with the implementation of the principle of applying the minimum damage to…

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