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 |
| 6932238 | Non-refillable valve device A non-refillable valve device includes a housing with an axially extending internal cavity, where the internal cavity includes a chamber extending to an end of the housing. The housing is securable to a container to facilitate fluid communication between the contain... | 08/23/2005 |
| 4712700 | Tamper resistant bottle The present invention provides a tamper resistant bottle to prevent and deter persons from injecting contaminated substances into bottles containing liquids, from removing the solid contents of the bottle, changing their composition, replacing the content... | 12/15/1987 |