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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 |
| 7955163 | Abrading device An abrading device features a flexible abrading membrane supported by two supports. The device may be used in either linear or rotary configurations. The device can be used in conjunction with devices that impart continuous or vibratory linear or rotary motion. ... | 06/07/2011 |
| 7185563 | Impact driver and fastener removal device A fastener impact driver device includes a fastener engagement member having a plurality of projections disposed about a lower portion that engages a corresponding peripheral portion of a fastener. The device further includes a positioning member having an upper por... | 03/06/2007 |
