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...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 |
| 6625900 | Hearing aid drying device A hearing aid drying device for receiving and heat-drying one or more hearing aids. The device includes an electrical outlet-supported and electrically actuated wall light having a base with electrical contacts for operative engagement into an electrical ... | 09/30/2003 |
| 6481119 | Apparatus for removing organic antireflection coating An organic antireflection coating is formed on a semiconductor substrate. A resist film is formed on the semiconductor substrate through the organic antireflection coating. The resist film is patterned for forming a resist pattern having an opening. A par... | 11/19/2002 |
| 6446355 | Disk drying apparatus and method Liquid is removed from disks by apparatus and methods for drying a disk that has been wet in a liquid bath. The disk and the bath are separated at a controlled rate to form a monolayer of liquid on the disk as the disk is positioned in a gas-filled volume... | 09/10/2002 |
| 6399920 | Hearing aid drying apparatus An apparatus for removing moisture from a hearing aid by positioning the hearing aid in a chamber of preselected volume and passing heated air over the hearing aid and maintaining the first chamber within a preselected temperature range.... | 06/04/2002 |
| 5361512 | System for applying herbicides to flora infestations within sewer lines A method and apparatus for applying herbicide to the interior of sewer lines. The invention includes a heating assembly which is capable of raising the temperature of the herbicide such that it enters a gaseous state. This gaseous herbicide is then forced... | 11/08/1994 |
| 4699119 | Heater cabinet A heater cabinet which utilizes a source of steam heat to elevate to a predetermined working temperature various industrial containers and the contents thereof. Containers suitable for use with the heater cabinet include barrels, drums, pails, nondisposab... | 10/13/1987 |
