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 |
| 5406492 | Directional voice-type navigation apparatus A voice-type navigation apparatus is disclosed for giving voice instructions regarding a route to be taken by a vehicle. The instructions are indicated by an audible voice. A memory is provided for storing various voice data for guiding a driver to mainta... | 04/11/1995 |
