Chris Gower Over the past 144 years there have been several hundred patents on handcuffs - mainly from the USA. Probably less than 20% were ever actually manufactured and sold. We also have several that were patented went into production and then withdrawn. An example here is the TuffKuffs, had a very good idea that the hands could be cuffed together then turning the wrists the hands were stacked on each other making escape even with a key very difficult. However, the problem was there was no stop on them and they found prisoners would deliberately over twist there wrists into a very painful position and had to be released from them. They were made in two main models all stainless steel and alpha-bravo model which had a black lockcase. They were expensive when launched in about 2008 costing about $140 We believe less than 100 are now in collections and they demand a high price. Does anyone here have any?
