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Reward Candy Dispenser for Personal Computers
A personal computer peripheral, battery powered reward candy dispenser which immediately presents students with a single candy for each problem completed correctly.
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| Number | Title | Issue Date |
| 4658751 | Amphibian vehicle for shallow water An amphibian vehicle for shallow water, adapted for executing ground operations, such as dredging, removal of growth in channels, ditches and water courses includes a hull (1) with floating capacity, comprising a pontoon onto which several mechanisms for ... | 04/21/1987 |
| 3968766 | Amphibious air cushion vehicle Amphibious air cushion vehicles equipped with drum rollers. The vehicles may be tractors or trailers. Either the air cushion or the drum rollers may support the vehicle entirely or the load may be shared by the two systems. A single or multiple power plan... | 07/13/1976 |
