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 |
| 4765412 | Shock relieving horseshoe A horseshoe made of resilient material having a low modulus of elasticity, low density and an allowable working stress in the range of 15,000 to 22,000 PSI. The configuration of the spring, in combination with these properties, provides a working deflecti... | 08/23/1988 |