| Patents for G07F 15 - Coin-freed apparatus with meter-controlled dispensing of liquid, gas, or electricity (3,147) |
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| 08/21/1985 | EP0152198A2 A prepayment system |
| 08/21/1985 | EP0151874A1 Prepayment metering system |
| 08/13/1985 | US4534459 Low power coin routing gate apparatus |
| 05/28/1985 | US4519657 Multiple service unit |
| 05/14/1985 | US4517651 Automatic vending machine |
| 01/16/1985 | EP0131331A2 Commodity dispensing apparatus |
| 07/10/1984 | US4459432 Telephone charge integrating and displaying device and system |
| 10/26/1983 | EP0092436A2 Improved apparatus for the collection of payments for commodities |
| 07/26/1983 | US4395627 Gasoline station system for enablement of selected pumps by a credit card console located at the pump island |
| 05/10/1983 | US4383210 Apparatus and method for recharging an energy storage device |
| 04/26/1983 | US4381430 Coin operated timing mechanism |
| 03/29/1983 | CA1143843A1 Meters for measuring electrical energy consumption |
| 11/03/1982 | EP0063893A2 Energy controller |
| 09/21/1982 | US4351028 Meters for measuring electrical energy consumption |
| 09/03/1982 | EP0045756A4 Multiple service unit. |
| 08/31/1982 | US4347472 Apparatus and method for charging a battery in a vehicle |
| 04/28/1982 | EP0050120A1 Transaction control system |
| 02/17/1982 | EP0045756A1 Multiple service unit. |
| 10/15/1981 | WO1981002940A1 Transaction control system |
| 09/15/1981 | US4289225 Air compressor and dispenser |
| 09/03/1981 | WO1981002495A1 Multiple service unit |
| 09/01/1981 | US4287396 Control device for a coin operated mechanism |
| 07/08/1981 | EP0031391A2 Attendant-controlled system for automatic enablement and monitoring of fuel dispensers |
| 03/31/1981 | US4258837 Timer circuit for vending machine |
| 12/16/1980 | US4240030 Intelligent electric utility meter |
| 10/21/1980 | US4228885 Coin operated electric timer automatic electric candle |
| 09/16/1980 | CA1085959A1 Automatic dispensing service station security system |
| 09/03/1980 | EP0015120A1 Meters for measuring electrical energy consumption |
| 03/18/1980 | US4193488 Coin-operated washing machine cycle time reducer |
| 03/18/1980 | US4193487 Combined new oil vending and waste oil removing apparatus |
| 10/30/1979 | CA1065489A1 Dispenser control and data storage system |
| 10/09/1979 | US4170752 System for determining and calculating the work done by a mobile electrical machine at an energy supply station |
| 07/24/1979 | US4162530 Automatic energy supply systems of the multi-rate calculating type |
| 05/08/1979 | US4152954 Timing mechanism with coaxial drive system |
| 06/13/1978 | US4094396 Control device for a coin operated mechanism |
| 06/13/1978 | US4094347 Balloon neck fitting |
| 05/09/1978 | US4088161 Balloon vending machine |
| 03/14/1978 | US4078645 Prepayment fluid feeder |
| 01/10/1978 | US4067486 Liquid fuel dispensing system |
| 10/04/1977 | US4052655 Battery recharging meter |
| 06/14/1977 | US4028839 Depth control device for use while fishing |
| 12/21/1976 | US3998356 Electronic system for article dispensing apparatus |
| 10/12/1976 | US3986114 Watt-hour counter |
| 08/17/1976 | US3975713 Signal generating device actuated by a non-reusable two channel coded magnetic recording medium |
| 04/06/1976 | US3948379 Vibrating chair |
| 02/10/1976 | US3938018 Induction charging system |
| 01/27/1976 | US3935435 Gasoline dispenser |