| All Patents in class 415/204 |
Patents 1 -
15
of 21
      |
| Number | Date | Patentee | Title | Type |
| 21,756 | Oct. 12, 1858 | W.C. Hibbard | Improvement in centrifugal pumps | rotary pumps |
| 48,781 | Jul. 18, 1865 | A. Allen, J.A. Allen | Water Wheel | turbine water wheels |
| 87,523 | Mar. 02, 1869 | B.F. Sturtevant | Improvement in blower-case | blowers |
| 107,665 | Sep. 27, 1870 | W.S. Colwell | Improvement in blowers | waste collection mechanisms |
| 157,450 | Dec. 08, 1874 | J. Foulke, J. Hunt | Woodworkers Vise | woodworkers vises |
| 196,998 | Nov. 13, 1877 | B.F. Sturtevant | Fan Blowers | blowers |
| 226,402 | Apr. 13, 1880 | I.W. Heysinger | Device for Filing and Binding Papers | staplers |
| 363,534 | May 24, 1887 | P. Murray, Jr. | Water Motor | hydraulic motors |
| 1,026,904 | May 21, 1912 | J. Burke | Electric motor | blowers |
| 1,125,117 | Jan. 19, 1915 | C.V. Kerr | Centrifugal Pump | rotary pumps |
| 1,131,044 | Mar. 09, 1915 | A.L. De Leeuw | Pump | centrifugal pumps |
| 1,138,083 | May 04, 1915 | W.H. Carrier | Rotary fan | fans and blowers |
| 1,341,882 | Jun. 01, 1920 | A.A. Criqui | Centrifugal fan | fans and blowers |
| 1,584,944 | May 18, 1926 | A.J. Johnson | Blower construction | handheld power blowers |
| 1,687,541 | Oct. 16, 1928 | W.F. Carmichael | Turbine Fan Structure | cooling apparatus |
