| All Patents in class 235 |
Patents 1 -
15
of 238
      |
| Number | Date | Patentee | Title | Type |
| 7,844X | Nov. 19, 1833 | W.A. Turner | Odometer, indicating distances travelled in carriages | |
| 8,236X | Jun. 06, 1834 | D. Kohler | Adding machine | |
| 2,907 | Jan. 10, 1843 | J.P. Smith | Merchant's Slide Rule | scales |
| RE71 | Jul. 08, 1845 | W. Woodworth | Woodworth planer | wood planers |
| 6,359 | Apr. 17, 1849 | J. Tremper | Piston-ring and method of deriving motion therefrom in rotary engines | rotary steam engines |
| 7,331 | Apr. 30, 1850 | B.M. Van Der Veer | Board and Log Rule | lumber rules |
| 8,019 | Apr. 01, 1851 | W. Campbell, H. Gross | Improvement in Machines for Cutting Screws on Bedstead-Rails | wood threading machines |
| 13,833 | Nov. 20, 1855 | L. Young | Revolving Measuring-Wheel | wheel-based measurers |
| 14,329 | Feb. 26, 1856 | H. Whipple | Instrument for measuring the length of braces in carpentry | rules |
| 16,359 | Jan. 06, 1857 | J. Jones | Instrument for Measuring Boards | lumber rules |
| 17,230 | May 05, 1857 | R. Porter | Improvement in the buckets of automatic grain-weighing machines | grain scales |
| 22,449 | Dec. 28, 1858 | J. Pefley | Lath-machine | lath making machines |
| 22,849 | Feb. 08, 1859 | H.J. Behrens | Billiard-register | |
| AI229 | Apr. 19, 1859 | O.L. Castle | Adding numbers | |
| 25,423 | Sep. 13, 1859 | A. Lafever | Board Measure | |
