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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 |
| 5749635 | Reversible track link for an endless track A reversible endless track 10 engages a drive sprocket 12 and track rollers 14 of a track type vehicle. The endless track 10 has a plurality of track link assemblies 16 that includes a symmetrical track link 20, wear bars 22 with rail surfaces 24, and tra... | 05/12/1998 |
| 4423910 | Reversible track link assembly and track shoes therefor In an endless track for crawler type vehicles, a plurality of identical, reversible track links are articulately interconnected in transversely spaced pairs into an endless chain by sealed pivot assemblies including readily replaceable hardened wear inser... | 01/03/1984 |
| 4123119 | Track shoe with clamping means An endless track assembly comprises a plurality of track shoes pivotally interconnected by a link assembly secured thereto. The link assembly comprises a plurality of links with each track shoe being releasably secured to each pair of laterally spaced lin... | 10/31/1978 |
| 3947074 | Reversible track link with replaceable rail and method An endless track assembly for a track type vehicle comprises a symmetrical track link having a rail segment and a track shoe disposed on upper and lower surfaces thereof, respectively. A pair of longitudinally spaced bosses are secured to an underside of ... | 03/30/1976 |
| 3937530 | Reversible track link with clamped-on shoe An endless track assembly for a track type vehicle comprises a plurality of symmetrical track links each having a track shoe clamped thereon by a plurality of hook or U-bolts. Upon release of the bolts, the track link may be reversed and the track shoe re... | 02/10/1976 |
