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Ford patents rear wheel that converts into a unicycle

Automakers patent and trademark everything. Some brilliant idea hammered out in an engineering meeting? Patent it. A friendly chat at lunch? Patent it. Hammered at the local watering hole and jot something out on a cocktail napkin? Patent it.

Source: http://www.autoblog.com/2015/12/29/ford-unicycle-rear-wheel-patent/
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