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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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| Application No. | Application Title | Issue Date |
| 20100322777 | COMPRESSOR BLADE A blade (2) for a compressor comprising a pressure surface (6) and a suction surface (4), wherein the suction surface (4) comprises: a discontinuity in the chord-wise curvature of an intermediate portion of the suction surface between the bla... | 12/23/2010 |
| 20090016873 | Gas Turbine Systems Involving Feather Seals Systems involving feather seals are provided. A representative vane assembly for a gas turbine engine includes: a first mounting platform having a first slot; a first airfoil extending from the first mounting platform; and a feather seal having opposing faces, a first s... | 01/15/2009 |
| 20060257261 | Cascade rotor blade for low noise Low-noise airfoils and methods of reducing noise. One embodiment provides an aerodynamic member that includes two body portions coupled to each other. The second body portion includes a plurality of airfoil members in a fixed relationship with each other. Optionally, th... | 11/16/2006 |
| 20060239824 | Proprotor blade with leading edge slot A proprotor blade (27a, 27b, 127a, 127b) having a fixed, spanwise, leading edge slot (215) located in at least the inboard portion of the proprotor is disclosed. The slot (215) is formed by a selectiv... | 10/26/2006 |
