And here's the patent that kicked it all off: US4448419, also known as the "Telnaes patent" for its inventor. https://www.google.com/patents/US4448419 https://

And here's the patent that kicked it all off: US4448419, also known as the "Telnaes patent" for its inventor. https://www.google.com/patents/US4448419 https://www.google.com/patents/US4448419 The original intent of the design was to allow for larger payouts without the need to increase the size of the machine.