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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 |
| 5649857 | Abrasive wheel A laminated abrasive wheel comprises a central carrying member having two holding flanges between which abrasive laminae assembled to form stacks of abrasive laminae are arranged. On the holding flanges there are fastened respectively alternating studs wh... | 07/22/1997 |
| 5584755 | Abrasive wheel for hand-guided grinding machines, in particular abrasive cutting-off wheel An abrasive wheel, in particular an abrasive cutting-off wheel, comprises an annular cylindrical inner support of metal and an abrasive ring surrounding the latter, both being connected with each other. The abrasive ring projects on both sides from the su... | 12/17/1996 |
