| All Patents in class 123 |
Patents 1 -
10
of 1718
      |
| Picture | Number | Date | Patentee | Title |
| | 2,753 | Aug. 18, 1842 | A. Perry, A.M. Bouton | Mode of Changing Reciprocating into Rotary Motion for Steam Engines and Other Purposes |
 | 3,597 | May 25, 1844 | S. Perry | Manner of Constructing an Inflammable Gas or Vapor Engine |
 | 4,800 | Oct. 07, 1846 | S. Perry | Gas Engine |
| | 9,103 | Jul. 06, 1852 | E. Rogers | Mode of Grinding Puppet-Valves While the Engine is in Motion |
 | 10,358 | Jan. 03, 1854 | A.C. Cook | Machine for sawing bevel surfaces |
| | 10,647 | Mar. 14, 1854 | A. Taylor | Steam Engine Faucet-Valve |
 | 11,036 | Jun. 06, 1854 | D. Russell | Method of operating sawmill-blocks |
 | 11,900 | Nov. 07, 1854 | B. McKeage | Mode of sawing bolts for staves |
| | 11,909 | Nov. 07, 1854 | C. Rumley | Rotary Steam Engine |
| | 12,715 | Apr. 17, 1855 | A. Drake | Explosive Gas Engine |
