...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 7178484 | Apparatus for raising a sow in a farrowing crate In a farrowing pen which includes a pit and over the pit a first floor portion on which the sow can stand and lie and two further floor portions on each side of the first floor portion for receiving piglets of the sow and confining walls for locating the sow on the ... | 02/20/2007 |
| 6135055 | Cattle management method and system A highly automated method and system for providing individual animal electronic identification, measurement and value based management of cattle in a large cattle feedlot. Through the use of (1) a computer system integrated with (2) automatic individual a... | 10/24/2000 |
| 6000361 | Cattle Management method and system A highly automated method and system for providing individual animal electronic identification, measurement and value based management of cattle in a large cattle feedlot. Through the use of (1) a computer system integrated with (2) automatic individual a... | 12/14/1999 |
| 5988106 | Method and apparatus of caring for animals, in particular feeding same A method and apparatus for treating animals that are milked in an automated milking system. For the animals involved or groups of such animals, there is stored a predetermined desired weight pattern for such animals or groups of animals, which weight patt... | 11/23/1999 |
| 4617876 | Animal identification and control system An animal identification and control system comprising an identification tag on the animal having a signal sending device for sending an identification code signal to a signal receiving device mounted adjacent a water bowl located in juxtaposition to a we... | 10/21/1986 |