| All Patents in class 384/291 |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| 429,507 | Jun. 03, 1890 | C.M. Conradson | Pulley | industrial machine pulleys and belt drive mechanisms |
| 444,812 | Jan. 20, 1891 | W.W. Carey | Self-lubricating device for pulleys | industrial machine pulleys and belt drive mechanisms |
| 1,559,879 | Nov. 03, 1925 | E.C. Hutchinson | Bearing Construction | industrial machine bearings |
| 1,733,931 | Oct. 29, 1929 | G.A. Arnold | Lubricating bearing | handheld power drills |
| 2,566,080 | Aug. 28, 1951 | J.H. Davids | Bushing Assembly | industrial machine bearings |
