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Chit Chat / Re: Look what Target has ....
« on: March 12, 2012, 05:09:27 am »I thought Vorwerk had international patents on the design concept (not just what it looks like, but the fact that it is multi-function)My understanding is that Vorwerk only patented the TM31 not the TM21. That is why the Chinese are only copying the old technology of the TM21 - well for now anyway!.