| All Patents in class 418 |
Patents 106 -
120
of 279
      |
| Number | Date | Patentee | Title | Type |
| 440,125 | Nov. 11, 1890 | A.D. Baker | Rotary Engine | rotary steam engines |
| 440,491 | Nov. 11, 1890 | J. Moffet | Reversible engine | portable metal boring and drilling machines |
| 441,865 | Dec. 02, 1890 | G.H. Chappell | Rotary Gas Engine | rotary engines |
| 442,963 | Dec. 16, 1890 | J.H. Eichler | Rotary Gas Engine | rotary engines |
| 444,087 | Jan. 06, 1891 | S.E. Chapleau | Rotary Compound Steam Engine | rotary steam engines |
| 444,834 | Jan. 20, 1891 | J.W. Hayes | Rotary Engine | rotary steam engines |
| 445,038 | Jan. 20, 1891 | S.G. Brosius | Rotary Steam Engine | rotary steam engines |
| 445,039 | Jan. 20, 1891 | S.G. Brosius | Rotary Steam Engine | rotary steam engines |
| 447,535 | Mar. 03, 1891 | A.W. Billings, W.G. Billings | Rotary Engine | rotary steam engines |
| 447,831 | Mar. 10, 1891 | M. Johnson | Rotary Engine | rotary steam engines |
| 448,213 | Mar. 17, 1891 | M.P. Elgen | Rotary Engine | rotary steam engines |
| 448,607 | Mar. 17, 1891 | E.H. Gollings | Rotary Engine | rotary steam engines |
| 449,148 | Mar. 31, 1891 | G.H. Weston | Rotary Engine | rotary steam engines |
| 449,325 | Mar. 31, 1891 | W.J. Kendig | Rotary Engine | rotary steam engines |
| 449,864 | Apr. 07, 1891 | J.E. Sackett | Rotary Steam Engine | rotary steam engines |
