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 |
| 7296538 | Deer feeder A deer feeder for holding a food container such as a jar of peanut butter. The deer feeder includes a support structure that extends upwardly from the ground and a food container holder, in the form of a sleeve, mounted to an upper portion of the support. The food c... | 11/20/2007 |
| 7041439 | Methods and apparatus for selectively processing eggs having identified characteristics Methods and apparatus for processing eggs based upon a characteristic such as gender are provided. Material is extracted from each of a plurality of live eggs, the extracted material is assayed to identify eggs having the characteristic, and then eggs identified as ... | 05/09/2006 |
| 6606962 | Horse feeder A livestock feeder particularly suited as a horse feeder. This feeder has a grille on a front face and hangs on an outside of an enclosure with the front face resting on horizontal bars of the enclosure. The animal is able to pull feed through the vertica... | 08/19/2003 |
| 6386142 | Modular birding accessory pole and associated birding accessories A modular pole system for birding includes different modules to allow the birder to custom design their birding pole to include a variety of birding accessories such as bird feeders, bird houses, artificial and natural perches and bird baths. The modules ... | 05/14/2002 |
| 6311641 | Bird perch, feeder, and bath A bird perch, feeder, and bath having a base, a pole, a feeder, a perch bar, and a catch pan. The catch pan is centrally positioned below the feeder and perch bar in order to minimize the amount of bird feed, bird waste and other materials dropping from t... | 11/06/2001 |
| 5897998 | Method for manipulating avian eggs This invention provides a method for manipulating the contents of eggs. An opening is made in the egg shell, without breaking the underlying egg shell membrane, and an aqueous liquid is deposited over the opening such that the opening is completely covere... | 04/27/1999 |