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 |
| 4778013 | Plow with adjustable moldboard A frame beam supports a plurality of plow bodies, the front plow body of which has a one-piece moldboard and is pivotable about an upwardly extending axis. Part of the moldboards of each of the following plow bodies is pivotable about an upwardly extendin... | 10/18/1988 |
| 4541491 | Plow A plow has coupling members at its forward side for connection to a multi-point hitch of a tractor. Furrow slicing members at the front form furrow slices which are elevated to furrow turning drums during operation. The furrow slices are turned about thei... | 09/17/1985 |
