Bizarre Patents
A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 4989234 | Systems for capturing telephonic mass responses Recipients of a promotion broadcast over an essentially one-way medium are prompted to respond thereto through their telephone sets having different subscriber telephone numbers, and the task of handling the resulting mass response is divided into a call ... | 01/29/1991 |
| 4989233 | Systems for capturing telephonic mass responses Recipients of a promotion broadcast over an essentially one-way mass medium are prompted to respond thereto through their telephone sets having different subscriber telephone numbers, and the task of handling the resulting mass response is divided into a ... | 01/29/1991 |
