Enter Your Reply The Comment You're Replying To John Ayer wrote on Sun, Dec 21, 2008 01:13 AM UTC:I think that 'proprietary design' means simply that the proprietors have the sole right to make and sell these. Once we've bought them, we can tie them to our hats, arrange them in triangles and bowl at them with marbles, or do whatever else we like with them. Edit Form You may not post a new comment, because ItemID piece sets does not match any item.