| Patents for Vernon F. Prentice |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| 127,132 | May 21, 1872 | E.J. Worcester, A.F. Prentice | Improvement in drilling-machines | drill presses |
| 193,437 | Jul. 24, 1877 | V.F. Prentice, E.J. Worcester | Improvement in machines for grinding mower and reaper knives | grinders |
| CA-8,630 | Apr. 08, 1878 | E.J. Worcester, V.F. Prentice | Machine for grinding cutters of mowers and reapers | sharpening machines |
| D12,839 | Mar. 28, 1882 | V.F. Prentice | Design for an upright drilling machine | drill presses |
| 418,382 | Dec. 31, 1889 | V.F. Prentice | Metal-turning lathe | metal lathes |
| 418,383 | Dec. 31, 1889 | V.F. Prentice | Drilling-machine | drill presses |
| 438,014 | Oct. 07, 1890 | B.G. Luther | Drilling-machine | drill presses |
| 547,588 | Oct. 08, 1895 | V.F. Prentice | Drilling-machine | |
| 553,594 | Jan. 28, 1896 | V.F. Prentice | Engine Lathe | engine lathes |
| 572,445 | Dec. 01, 1896 | B.W. Prentice | Sectional expansion-tap | taps and dies |
| 582,225 | May 11, 1897 | V.F. Prentice | Mandrel | mandrels and arbors |
