from a post by Dave L in another thread:
Quote:
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The patent for Mecanum wheels (also known as "Swedish wheels") goes back to the 1970s. They were developed by Bengt Ilon, an engineer for the Swedish company Mecanum AB (one paper describing some of the early Mecanum wheel history and designs can be found here http://www.araa.asn.au/acra/acra2002...eter-Tlale.pdf ).
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I dont know if the patent has expired yet.
BTW, your english is much better than my polish :^)