| All Patents in class 474/903 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 394,729 | Dec. 18, 1888 | C.W. Shartle | Slip-collar for pulleys | industrial machine pulleys and belt drive mechanisms |
| 630,868 | Aug. 15, 1899 | J.A. Dorman | Split Pulley | industrial machine pulleys and belt drive mechanisms |
| 646,414 | Apr. 03, 1900 | T. Corscaden | Pulley | industrial machine pulleys and belt drive mechanisms |
| 767,377 | Aug. 16, 1904 | R.H. Bowen | Sheave, wheel, or pulley | industrial machine pulleys and belt drive mechanisms |
| 788,185 | Apr. 25, 1905 | R.H. Bowen | Sheet-metal pulley | industrial machine pulleys and belt drive mechanisms |
| 875,448 | Dec. 31, 1907 | R. Milne | Core and casting | machine making |
| 1,076,605 | Oct. 21, 1913 | H.P. Reston | Pulley | industrial machine pulleys and belt drive mechanisms |
| 5,848,947 | Dec. 15, 1998 | R.A. Reinke, M.G. Brosier, D.L. Fornasiere | Split Power Transfer Member | metalworking power transmission |
