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Superstar singer Michael Jackson co-patented a "Method and means for creating anti-gravity illusion" in 1993.
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| Number | Title | Issue Date |
| 6278955 | Method for automatically positioning the blade of a motor grader to a memory position A system and method for automatically adjusting the blade of a motor grader to an operator programmed blade position. The method includes the steps of: providing an electronic controller and blade controls having position sensors; monitoring the output of... | 08/21/2001 |
| 5810092 | Implement for improving the hygroscopic properties of soil The invention relates to an implement for treating soil and, in particular, to an implement used to improve the hygroscopic properties of the soil by making holes in it using one or more tools mounted on an irregular, variable, quadrilateral jointed struc... | 09/22/1998 |
| 5469922 | Soil aerator A soil aerator comprising a planetary aeration system, a frame, an attachment mechanism and a drive unit to form aeration holes the soil aerator having an attachment mechanism to allow it to be attached to a conventional farm tractor, a friction drive pul... | 11/28/1995 |
| 4287710 | Hay machine for working crop lying on the ground A hay machine for working crop lying on the ground, such as a side-delivery rake, a tedder or a combined hay-making machine has a tined carrier for redepositing worked crop on the ground and comprises rows of tines which, in operation, are rotated in a fo... | 09/08/1981 |
| 4084642 | Turf perforating machine A turf perforating machine for aerating lawns by removing plugs therefrom comprising a wheeled frame having a plurality of reciprocating tools, each connected by a linkage to an eccentric mounted on a journal and each linkage slidably mounted in a pivotab... | 04/18/1978 |
| 3957122 | Rotary ploughs A rotary plough has one or more rotors rotatably mounted to be driven via a power take off about a horizontal axis that extends transverse to the direction of travel. Each rotor has a central support and axis of rotation and two spaced apart and oppositel... | 05/18/1976 |
