| All Patents in class 418/191 |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| 8,644X | Feb. 20, 1835 | G.M. Alsop | Rotary steam engine | steam engines |
| 59,792 | Nov. 20, 1866 | D. Drawbaugh | Improvement in faucets | |
| 165,805 | Jul. 20, 1875 | T.S. Disston | Rotary Blower | tool making machines |
| 293,511 | Feb. 12, 1884 | J.H. Phelps | Rotary Engine | rotary steam engines |
| 428,762 | May 27, 1890 | W.S. Sharpneck | Rotary Gas Engine | rotary engines |
| 432,677 | Jul. 22, 1890 | C. Harper, N. Ratchford | Steam Engine | rotary steam engines |
| 449,148 | Mar. 31, 1891 | G.H. Weston | Rotary Engine | rotary steam engines |
| 465,947 | Dec. 29, 1891 | W.J. Putnam | Rotary Engine | rotary steam engines |
| 685,775 | Nov. 05, 1901 | T.J. Lindsay | Rotary Pump or Blower | rotary pumps |
| 741,018 | Oct. 13, 1903 | H.M. Dailey | Rotary engine | rotary steam engines |
| 2,188,752 | Jan. 30, 1940 | C.R. Houghton | Fluid handling apparatus | rotary pumps |
