| All Patents in class 418/206.1 |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| 9,005X | Aug. 15, 1835 | D.M. Walker | Rotary pump | rotary pumps |
| 44,892 | Nov. 01, 1864 | P.H. Roots | Improvement in blower-cases | blowers |
| 244,629 | Jul. 19, 1881 | W.F. Leach | Portable steam-auger | wood drilling and boring |
| 465,194 | Dec. 15, 1891 | E.H. McDonald | Rotary Steam Engine | rotary steam engines |
| 626,206 | May 30, 1899 | W. Jasper | Explosive Motor | rotary engines |
| 732,880 | Jul. 07, 1903 | J.S. Moseley | Rotary engine | |
| 924,024 | Jun. 08, 1909 | J.T. Wilkin | Vacuum-pump | vacuum pumps |
| 1,189,766 | Jul. 04, 1916 | J.T. Wilkin | Impeller pump or blower and driver therefor | blowers |
| 1,849,093 | Mar. 15, 1932 | J.T. Janette | Self priming pump | rotary pumps |
| 1,938,762 | Dec. 12, 1933 | F.S. Haas | Grinding Machine | cylindrical grinders |
| 3,578,890 | May 18, 1971 | O.F. Jensen | Rotary Steam Engine | rotary steam engines |
