| Patents for Alexander F. Roberts |
Patents 61 -
69
of 69
      |
| Number | Date | Patentee | Title | Type |
| 169,475 | Nov. 02, 1875 | L.C. Pratt | Improvement in scroll-sawing machines | scrollsaws |
| 174,228 | Feb. 29, 1876 | E.W. Gillman | Improvement in machines for finishing barrels | barrel making machines |
| 175,101 | Mar. 21, 1876 | P. Hughes | Improvement in jig-saws | scrollsaws |
| 175,389 | Mar. 28, 1876 | E.B. Stimpson | Improvement in leather-skiving machines | leatherworker |
| 179,932 | Jul. 18, 1876 | A. Luckhaput | Improvement in machines for dressing staves | barrel making machines |
| 180,672 | Aug. 01, 1876 | E.B. Stimpson | Improvement in apparatus for cutting and ornamenting shoe-uppers | leatherworker |
| 193,985 | Aug. 07, 1877 | D.B. McRae | Improvement in circular saws | sawblades |
| 200,733 | Feb. 26, 1878 | H.W. King | Improvement in machines for trussing barrels | barrel making machines |
| 201,197 | Mar. 12, 1878 | C.T. Porter | Improvement in journal-boxes | steam engines |
