Process For Propelling Foodstuffs or the Like into a Crowd
A method of launching foodstuffs into a crowd for promotional and entertainment purposes.
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| Number | Title | Issue Date |
| 4521647 | Tone detection system and method Tone detection apparatus and a corresponding method is disclosed. The improved tone detector and method is for use in a preferred embodiment in a voice message answering system to provide for improved dual tone multi-frequency tone detection where an outg... | 06/04/1985 |