|
| US4008792 | 20 Aug 1975 | 22 Feb 1977 | H. R. Electronics Company | Vend control circuits capable of vending different quantities at different prices |
| US4034839 | 13 Nov 1975 | 12 Jul 1977 | H. R. Electronics Company | Simplified multi-price vend control circuit |
| US4121603 | 2 Dec 1976 | 24 Oct 1978 | Nippon Coinco Co. Ltd. | Control system for a vending machine |
| US4192972 | 28 Nov 1978 | 11 Mar 1980 | Cselt-Centro Studi e Laboratori Telecomunicazioni S.p.A | Pay-telephone station with deferred collection |
| US4282575 | 10 Aug 1979 | 4 Aug 1981 | The Wurlitzer Company | Control system for vending machine |
| US4354613 | 15 May 1980 | 19 Oct 1982 | Trafalgar Industries, Inc. | Microprocessor based vending apparatus |
| US4905813 | 22 Aug 1988 | 6 Mar 1990 | XCP, Incorporated | Escrow credit controllers and method of operation thereof |
| US5070518 | 14 Feb 1990 | 3 Dec 1991 | North American Philips Corp. | Coin counting control apparatus for a vending machine |
| US5164969 | 12 Jul 1991 | 17 Nov 1992 | Hewlett-Packard Company | Programmable max/min counter for performance analysis of computer systems |
| US5577957 | 13 Mar 1995 | 26 Nov 1996 | Coin Acceptors, Inc. | Coin payout method and control apparatus |
| US5595277 | 21 Oct 1994 | 21 Jan 1997 | Coin Acceptors, Inc. | Coin payout method and control means |
| US5598947 | 24 Jan 1995 | 4 Feb 1997 | | Automatic hot food vending machine |
| US5607350 | 21 Mar 1995 | 4 Mar 1997 | | Global coin payout method and control apparatus |
| US5697483 | 19 Apr 1996 | 16 Dec 1997 | Kabushiki Kaisha Nippon Conlux | Coin processor |
| US5733186 | 17 Apr 1996 | 31 Mar 1998 | Coin Acceptors, Inc. | Multiple coin tube changer operable within existing vending machine |
| US5924081 | 14 Nov 1995 | 13 Jul 1999 | Audit Systems Co. | Vending machine audit monitoring system with matrix interface |
| US6045443 | 3 Sep 1998 | 4 Apr 2000 | Mars Incorporated | Method and apparatus for controlling the dispensing of money |
| US6213877 | 8 Oct 1997 | 10 Apr 2001 | Walker Digital, LLC | Gaming method and apparatus having a proportional payout |
| US6575363 | 28 Dec 2000 | 10 Jun 2003 | | Vending machine |
| US6589115 | 14 Feb 2001 | 8 Jul 2003 | Walker Digital, LLC | Gaming method and apparatus having a proportional payout |
| US7014554 | 3 Mar 2000 | 21 Mar 2006 | Mars Incorporated | Adaptable coin mechanism |
| US7870029 | 3 May 2001 | 11 Jan 2011 | International Business Machines Corporation | Determining the availability of purchasable items in a network environment |
| US7905774 | 11 Jun 2003 | 15 Mar 2011 | IGT | Apparatus providing payouts proportional to wagers and methods for operating same |
| USRE33314 | 7 Jul 1987 | 28 Aug 1990 | Mars Incorporated | Vending machine power switching apparatus |
| USRE40588 | 26 Jun 2002 | 25 Nov 2008 | Audit Systems Company | Vending machine audit monitoring system with matrix interface |
