| Patents for Caleb Hopkins |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 132,763 | Nov. 05, 1872 | C. Hopkins | Improvement in Watchmakers' Lathes and Chucks | watchmakers lathes |
| 186,564 | Jan. 23, 1877 | C. Hopkins | Treadle | human powered apparatus |
| 193,609 | Jul. 31, 1877 | C. Hopkins | Improvement in slide-rests for watch-makers' lathes | watchmakers lathes |
| 196,228 | Oct. 16, 1877 | C. Hopkins | Improvement in watch-makers' lathes | watchmakers lathes |
| 233,097 | Oct. 12, 1880 | C. Hopkins | Watchmakers Lathe Chuck | metal lathe chucks |
| 301,466 | Jul. 01, 1884 | C.E. Van Norman, C. Hopkins | Lathe Chuck | metal lathe chucks |
