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| US4426016 | 4. Aug. 1981 | 17. Jan. 1984 | Choice Vend Industries, Inc. | Convertible dispensing mechanism for vending machine |
| US4429807 | 4. Aug. 1981 | 7. Febr. 1984 | Choice-Vend Industries, Inc. | Adjustable dispensing mechanism for vending machine |
| US4444334 | 4. Aug. 1981 | 24. Apr. 1984 | Choice Vend Industries, Inc. | Modular dispensing mechanism for vending machine |
| US4636803 | 16. Okt. 1984 | 13. Jan. 1987 | Exxon Printing Systems, Inc. | System to linearly supply phase change ink jet |
| US4782979 | 16. Apr. 1987 | 8. Nov. 1988 | Hollingsworth UK (Ltd.) | Apparatus for dispensing a succession of conical objects |
