The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
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| Number | Title | Issue Date |
| 7494341 | Farrier training system A farrier training system includes an artificial leg portion attached to an artificial hoof portion. The hoof portion is removably attached to the lower end of the leg portion. The leg is articulated with at least one spring-loaded joint to simulate a real horse's l... | 02/24/2009 |
| 7430990 | Mechanical roping steer apparatus with pivoting horns and pivoting horn support A mechanical roping steer apparatus for practicing roping of a steer is disclosed that comprises a support assembly for engaging the ground surface and a steer assembly mounted on the support assembly. The support assembly may comprise a main frame and a pair of lat... | 10/07/2008 |
| 7317661 | Tuna grazing system A pre-selected fish grazing system to enhance harvesting of such pre-selected fish from a body of water. The fish grazing system includes at least one conductor unit attached to a body of a pre-selected fish for acting as a guide for other preselected fish present i... | 01/08/2008 |
| 7245985 | Process and apparatus for improving and controlling the vulcanization of natural and synthetic rubber compounds A process for curing a natural or synthetic rubber compound under a plurality of curing conditions by: (1) obtaining time dependent data streams of dielectric or impedance values from a non-bridged impedance sensing circuit and a capacitor having the rubber compound... | 07/17/2007 |
| 7101186 | Dally practicing systems A dally practicing system which simulates the conditions of roping a steer with relative safety. The portable dallying practice system takes up slack in a rope without applying excessive tension which could injure the user, provides a clutch system which allows for ... | 09/05/2006 |
| 6623274 | Network farming method for customers who instruct growing conditions and receive harvest A customer is offered a realistic experience of growing and harvesting plants, flowers or fishes through instructions from the customer connected with a network. The home vegetable garden or the network farm includes customer terminals connected with a ne... | 09/23/2003 |
| 6231346 | Interactive hatching egg An interactive hatching egg provides a learning experience for children. The egg is formed of upper and lower sections joined along a plane transverse to the longitudinal axis of the egg. The lower section carries a power supply, a controller having an in... | 05/15/2001 |
| 5827069 | Roping training device The invention is of a training rope for use in teaching and learning roping. The training rope eliminates from the traditional roping rope the spanning and coiled segments, allowing the user to avoid entanglement with and of these segments and thereby to ... | 10/27/1998 |
| 5484290 | Animal packing dummy An animal packing dummy comprising a replica of a packing animal; a saddle coupled to the packing animal; a plurality of pack boxes coupleable to the saddle; a plurality of lash lines for securing the pack boxes to the replica using knots; and an instruct... | 01/16/1996 |
| 4551103 | Farm products agricultural game An educational toy that shows how watermelons and similar farm products are grown, harvested, and removed from the field in field trucks and taken to a packing shed where they are placed on conveyors and transferred to over the road trucks. These trucks t... | 11/05/1985 |