| Patents for A. H. Spencer |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 303,994 | Aug. 26, 1884 | R. Holman, D.J. White, F.H. Foster | Spiral lathe | rope and spiral cutting machines |
| 518,106 | Apr. 10, 1894 | W.J. Johnson | Tool-Handle | tool handles |
| D24,503 | Jul. 23, 1895 | L.S. Starrett | Try Square | squares |
| 557,446 | Mar. 31, 1896 | L.S. Starrett | Speed Measure | measurement gauges |
| D25,392 | Apr. 14, 1896 | L.S. Starrett | Design for a Plumb and Level Frame | metallic levels |
| 576,626 | Feb. 09, 1897 | L.S. Starrett | Hack Saw | hacksaws |
| 580,432 | Apr. 13, 1897 | L.S. Starrett | Speed Indicator | wheel-based measurers |
| 601,800 | Apr. 05, 1898 | L.S. Starrett | Speed Indicator | measurement gauges |
