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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 |
| 7360382 | Cylinder lock assembly The cylinder lock assembly includes a cylindrical lock housing having an inner core extending between first and second ends. The inner core defines a core axis extending through the first and second ends. A lock cylinder is received in the inner core for rotational ... | 04/22/2008 |
| 7162900 | Tubular lock and master key A master key includes a key base having a key handle, a fixing seat and a sleeve, all of which are connected to each other integrally. The fixing seat has a plurality of angularly spaced apart spring holes having respective key springs. A key tube includes a large c... | 01/16/2007 |
| 7080533 | Lock and magnetically coded card A magnetically coded card and a lock include a slot into which the card is inserted to operate the lock. The card has an aperture through which a card-impaling lock-in pin of the lock can pass when the card is fully inserted within the slot, thus retaining the card ... | 07/25/2006 |
| 6973814 | Safety key and locking cylinder, and locking system with such safety keys and locking cylinders The safety key has a shank (6) which is provided with a plurality of control surfaces (7) for properly positioning tumblers and has a front end and a rear end (6a, 6b). At a front end (4a), the rotor (4)... | 12/13/2005 |
| 6640593 | Adaptor for a door locking mechanism The invention relates to a novel locking assembly including a readily removable handle arrangement that can be quickly and easily interchanged with any number of other handles having whatever configuration is desired. This is accomplished by introducing a... | 11/04/2003 |
| 4388815 | Pick-proof lock A pick-proof lock is provided which is rendered difficult or impossible to pick not by virtue of any additional structure or apparatus but due to the intrinsic nature of the tumbler construction wherein all of the tumblers in the row of tumblers are conti... | 06/21/1983 |
| 4141234 | Dead bolt guard A guard mount structure for a dead bolt installation on a door has a preassembled condition wherein a dead bolt subassembly consisting of a housing and a dead bolt shaft is attached to a sheet metal guard. The sheet metal guard has opposite plates for att... | 02/27/1979 |
