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A method of launching foodstuffs into a crowd for promotional and entertainment purposes.
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| Number | Title | Issue Date |
| 4032003 | Hydrostatic conveyor drive A conveyor drive system employing a constant speed master drive and a slave drive of the hydrostatic, closed loop type in which there are no electrical or hydraulic feedback lines between the master and slave drive unit. The master drive moves the conveyo... | 06/28/1977 |
