| All Patents in class 74/40 |
Patents 1 -
15
of 32
      |
| Number | Date | Patentee | Title | Type |
| 8,253X | Jun. 14, 1834 | L. Marchand | Safety engine or machinery to supersede the use of steam | steam engines |
| 9,009X | Aug. 17, 1835 | C. Angevine | Churn | churns |
| 7,902 | Jan. 14, 1851 | J. Harris, Jr. | Converting Motion | steam engine crank rods |
| 21,606 | Sep. 28, 1858 | J. Holyland, J.C. Holyland | Cracker-machine | |
| 66,222 | Jul. 02, 1867 | A. Sharp, A. Cunningham | Power Hammer | power hammers |
| 122,248 | Dec. 26, 1871 | D.A. Greene | Reciprocating Engines | steam engines |
| 122,647 | Jan. 09, 1872 | J. Palmer | Improvements in Power Hammers | power hammers |
| 130,016 | Jul. 30, 1872 | W.E. Cass | Improvement in Metal Shaping Machines | metal lathe accessories and attachments |
| 132,239 | Oct. 15, 1872 | T.R. Bailey | Improvement in Key-Seat Cutting-Machines | key seating machines |
| 141,028 | Jul. 22, 1873 | B. Berndt | Improvement in saw-mills | sawmill carriages |
| 143,292 | Sep. 30, 1873 | D.B. Caldwell, J.H. McGowan | Crank-Connection for Steam Engines | steam engine crank rods |
| 175,010 | Mar. 21, 1876 | W.F. Barnes, J. Barnes | Improvement in foot-powers | human powered machines |
| 190,958 | May 22, 1877 | G.H. Corliss | Air Pump Connections for Steam Engines | air pumps |
| 196,796 | Nov. 06, 1877 | J. Glover | Improvement in scroll-sawing machines | scrollsaws |
| 241,450 | May 10, 1881 | C.M. Trautmann | Churn-power | churns |
