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 |
| 4299503 | Character selection mechanism for a typewriter A character selection mechanism for a typewriter having a single type head with characters arranged in rows and columns thereon, which mechanism comprises, for either row selection and column selection similarly, a series of cams, a series of cam follower... | 11/10/1981 |
| 4027763 | Keyboard for office machines A keyboard for a typewriter, teleprinter, calculator and similar office machines comprises a series of keys, a series of setting elements selectable by the keys and a group of code bars. A setting spring moves a common setting member which positions the s... | 06/07/1977 |