adiwan (adiwan)'s status on Friday, 03-May-13 06:58:57 UTC
-
Swinging on a swing is patented in the USA.... http://www.loweringthebar.net/2013/04/us-pat-no-6368227-method-of-swinging-on-a-swing.html
Swinging on a swing is patented in the USA.... http://www.loweringthebar.net/2013/04/us-pat-no-6368227-method-of-swinging-on-a-swing.html