| All Patents in class 474/189 |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| 593,366 | Nov. 09, 1897 | H.R. Tillison | Belt-pulley | industrial machine pulleys and belt drive mechanisms |
| D30,347 | Mar. 14, 1899 | M.F. Williams | Design for a pulley | industrial machine pulleys and belt drive mechanisms |
| D30,348 | Mar. 14, 1899 | M.F. Williams | Design for a pulley | industrial machine pulleys and belt drive mechanisms |
| 740,258 | Sep. 29, 1903 | G.A. Ensign | Belt-pulley | industrial machine pulleys and belt drive mechanisms |
| 3,961,736 | Jun. 08, 1976 | J.J. Fatula | Rubber-covered self-centering rolls | |
