Has anybody seen a product based on this patent? It looks like it lapsed so I'm not sure of the success of the IP.
Idea is that it vibrates to settle the balls into the nap of the cloth.
https://www.google.com/patents/US5871405
Idea is that it vibrates to settle the balls into the nap of the cloth.
https://www.google.com/patents/US5871405
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