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T150K based tracked vehicle seen in 2009 in Khanty-Mansiysk village. http://rcforum.ru/showthread.php?p=573496
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Savotta County 1164 timber tractor fitted with Finn-Tracks and a Cranab crane. Several types of County were built and used in Scandinavia. Picture from book ‘County’ of Stuart Gibbard, Farming Press, 1997.
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Ösa processor prototype. Pict from the book ‘Tracks in the Forest’ of Ken Drushka and Hannu Konttinen, published by Timberjack Group Oy, 1997.
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Little Bear 460 from Volvo and Ösa in the 60s had hydraulic traction on rear wheels. Pict from the book ‘Tracks in the Forest’ of Ken Drushka and Hannu Konttinen, published by Timberjack Group Oy, 1997.
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Four tracks Ford Kelderman's prototype tractor to haul heavy materials like gypsum or liquid lime, without compacting soils. www.toytractortimes.com
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Crawler Toy, 1968, from http://pinktentacle.com/tag/space/
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Charles Doerr diesel electric powered dozer, articulated, 1964, for Mannix Company of Alberta. With two Cummins engines of about 1000 hp, 80 t, length 10 m, this is the only built. http://www.heavy
equipmentforums.com/
showthread.php?5853-Electric-Drive-Tractors!!!/page2
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Caterpillar MT-450, 2010, for scraping. http://www.mobile
tracksolutions.com/MT450.aspx
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Caterpillar dumper MT-450, seen at Connexpo in 2011, equipped with four tracks. Pict Keith Haddock in 'Revue des Engins' from AIPETOHAC of Francis Pierre, 2011 12.
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