| Patents for Colburn Machine Tool Co. |
Patents 1 -
10
of 11
      |
| Picture | Number | Date | Patentee | Title |
 | 707,675 | Aug. 26, 1902 | H.J. Colburn | Circular sawing machine |
| | 892,107 | Jun. 30, 1908 | G.R. Willis | Change Speed Gear |
| | 1,068,324 | Jul. 22, 1913 | L.H. Colburn | Compound Table for Drill Presses |
| | 1,115,659 | Nov. 03, 1914 | A.A. Geck | Drill Press |
 | 1,167,887 | Jan. 11, 1916 | F.F. Clarke | Drill-press |
| | 1,185,060 | May 30, 1916 | F.F. Clarke | Spring Counterbalance for the Rams of Boring Mills |
| | 1,185,061 | May 30, 1916 | F.F. Clarke | Lubricating System for the Spindle and Table Drive for Vertical Boring and Turning Mills |
| | 1,185,064 | May 30, 1916 | F.F. Clarke | Clutch Gearing for Machine Tools |
| | 1,188,043 | Jun. 20, 1916 | F.F. Clarke | Stop Index System for Boring Mills |
| | 1,262,192 | Apr. 09, 1918 | E.C. Head | Method of Producing Gears |
