| Patents Granted on 1835-02-20 |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| 8,644X | Feb. 20, 1835 | G.M. Alsop | Rotary steam engine | steam engines |
| 8,645X | Feb. 20, 1835 | J. Ames | Paper machine | |
| 8,646X | Feb. 20, 1835 | J. Barron | Ventilation bellow for ships | shipwright |
| 8,647X | Feb. 20, 1835 | R. Beale | Percussion gun lock | gunsmith |
| 8,648X | Feb. 20, 1835 | T. Daplyn | Percussion gun lock | gunsmith |
| 8,649X | Feb. 20, 1835 | L. Garfield | Composition for water proof roofs, walls, aqueducts, and other articles | |
| 8,650X | Feb. 20, 1835 | B. Johnson | Carey hull plough | plows |
| 8,651X | Feb. 20, 1835 | J.C. Johnson | Tan vats, reservoirs, constructing, with American cement | |
| 8,652X | Feb. 20, 1835 | P. Sweet | Brick striker | bricklayer |
| 8,653X | Feb. 20, 1835 | W.P. Wing | Spindle, bush, ring, and ball for mills | |
| 8,654X | Feb. 20, 1835 | N. Dodge | Water wheel for steam boats | nautical propulsion apparatus |
