Do these really exist or is this fiction? Links please.
- They are in all catalogues of barcode scanner products. Not sure they have much a market yet, so, we might be the first to really find a good use for them.
- So let's see one catalogue where such a product is introduced
My bad, but I refer my hasty deletion to the above discussion. --Juxo 15:44, 24 Jul 2004 (EEST)