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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 |
| 7237575 | Tetraxial fabric and machine for its manufacture A tetraxial fabric is obtained using warp yarns, weft yarns, first bias yarns and second bias yarns. The warp yarns alternate to the weft yarns and the first bias yarns are overlaid by the second bias yarns, in addition the first bias yarns cross the second bias yar... | 07/03/2007 |
| 5351722 | Tetraxial fabric and weaving machine for its manufacture A tetraxial fabric and a weaving machine for manufacturing the fabric. The tetraxial fabric is formed by the crisscross of warp yarns, weft yarns, and bias yarns having two different diagonal directions. A first set of warp yarns is overlaid by the weft y... | 10/04/1994 |
