| Patents for E. B. Pratt |
Patents 1 -
15
of 21
      |
| Number | Date | Patentee | Title | Type |
| 141,760 | Aug. 12, 1873 | S.W. Card | Machines for milling twist-drills | metal threading machines |
| 255,123 | Mar. 21, 1882 | L.S. Starrett | Surface Gage | surface gauges |
| 257,492 | May 09, 1882 | W.D. Hatch | Log-dressing machine | wood lathes |
| 257,494 | May 09, 1882 | R.K. Huntoon | Gas-exhaust regulator | |
| 257,918 | May 16, 1882 | W. Bowker | Machine for sawing barrel-hoops from poles | bandsaws |
| 259,596 | Jun. 13, 1882 | C.W. Smith | Surface Gage | surface gauges |
| 259,661 | Jun. 20, 1882 | W. Bowker | Band-saw guide | bandsaw guides |
| 264,492 | Sep. 19, 1882 | J.A. Thayer | Claw Hammer and Screw Driver | hammers |
| 265,287 | Oct. 03, 1882 | W.H. Sleeper | Centering Try Square | center squares |
| 267,378 | Nov. 14, 1882 | N.P. Stevens | Machine for dressing hoops | hoop making machines |
| 270,951 | Jan. 23, 1883 | J.W. Harmon | Artificer's Level | levels |
| 271,672 | Feb. 06, 1883 | R. Williams | Machine for sawing hoops from poles | hoop making machines |
| 272,573 | Feb. 20, 1883 | P. Mihan | Gas Burner and Pipe Pliers | pliers |
| 272,996 | Feb. 27, 1883 | R. Williams, W. Bowker | Machinery for sawing barrel-hoops from poles | bandsaws |
| 280,390 | Jul. 03, 1883 | W.H. Mitchell | Divider or Compass | dividers |
