| All Patents in class 415/121.2 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 100,239 | Feb. 22, 1870 | B.F. Sturtevant | Pressure Blower | blowers |
| 146,120 | Jan. 06, 1874 | O.J. Backus | Water Motors for Sewing-Machines | hydraulic motors |
| 887,908 | May 19, 1908 | C.P. Barby | Apparatus for Shielding Vehicles form Dust | steam traction engines |
| 2,289,474 | Jul. 14, 1942 | E.L. Anderson | Apparatus for dust collection | waste collection mechanisms |
| 2,732,032 | Jan. 24, 1956 | A.G. Sandison | Dust collector | waste collection mechanisms |
| 4,325,163 | Apr. 20, 1982 | D.A. Milliken, G.M. Zink, C.A. Mattson | Portable blower-vacuum unit | blowers |
