| X Patents |
Patents 451 -
465
of 9755
      |
| Number | Date | Patentee | Title | Type |
| 451X | May 14, 1803 | D. Ilsley | Improvement in Distilling Spirits | distilling |
| 452X | May 17, 1803 | J.T. Hawkins, R. French | Cutting Grain and Grass | lawn mowers |
| 453X | May 17, 1803 | J.J. Hawkins | Pentegraph and parallel ruler | parallel rules |
| 454X | May 17, 1803 | B. Allison | Improvement in the Application of the Principle of Rectifying or Improving Spirits | distilling |
| 455X | May 19, 1803 | J. Clark | Machine for pumping | plumber |
| 456X | May 25, 1803 | J.W. Godfrey | Working bellows for a furnace or forge | blacksmith |
| 457X | May 25, 1803 | T. Alden, Jr. | Expediting the manufacture of common salt | manufacturing salt |
| 458X | Jun. 04, 1803 | J. Biddis, L.J. Kilborn | Improvement in the method of distilling or making alcohol | distilling apparatus |
| 459X | Jun. 07, 1803 | W. Mitchell, T. Bedwell | Improvement in Extracting the Effective Matter Contained in Barks for Dying | dyeing materials |
| 460X | Jun. 10, 1803 | D. Morse | Machine for Making Hinges | hinges |
| 461X | Jun. 13, 1803 | E. Corning, Sr. | Improvement in the Manufacturing of Hats | making hats |
| 462X | Jun. 15, 1803 | R. Graves, S. Morey, R. Giles | Steam Engine | steam engines |
| 463X | Jun. 15, 1803 | W. Bache, A. Day, I. Todd | Physiognotrace | physiognotraces |
| 464X | Jun. 23, 1803 | J. Warring, W. Keeler | Rocking churn | churns |
| 465X | Jun. 25, 1803 | L. Stanley | Machine for shearing woolen and other cloths | cloth shearing machines |
