| Patents for Albert P. Sibley |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 384,871 | Jun. 19, 1888 | A.P. Sibley | Pulley | industrial machine pulleys and belt drive mechanisms |
| 394,407 | Dec. 11, 1888 | G.O. Ware, A.P. Sibley | Bushing for split pulleys | industrial machine pulleys and belt drive mechanisms |
| 412,677 | Oct. 08, 1889 | A.P. Sibley | Drill-press | drill presses |
| 437,520 | Sep. 30, 1890 | G.O. Ware, A.P. Sibley | Split pulley | industrial machine mechanisms |
| 462,884 | Nov. 10, 1891 | A.P. Sibley, G.O. Ware | Drilling-machine | drill presses |
| 600,598 | Mar. 15, 1898 | A.P. Sibley | Automatic stop for self-feed drilling-machines | drill presses |
