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 |
| 4512415 | Pull plow with pull handles and runners and automobile selectively attached to plow This plow is unique, in that it is pulled manually, and is designed for garden use. Primarily, it consists of an aluminum frame with a pair of handle grips on one end, and the other end includes a plow blade attached to the center of the frame. It further... | 04/23/1985 |