| Patents for H. S. Sprague |
Patents 31 -
45
of 99
      |
| Number | Date | Patentee | Title | Type |
| 193,373 | Jul. 24, 1877 | J.H. Lewis | Improvement in Hand-Tools for Working Moldings | molding planes |
| 195,180 | Sep. 11, 1877 | J.B. Stockham | Improvement in cutter-heads | cutterheads |
| 196,064 | Oct. 09, 1877 | A.A. Wilder | Improvement in bolt-locks for rail-joints | track and switches |
| 196,691 | Oct. 30, 1877 | S. Head, J. Miller | Improvement in machines for sawing staves | barrel making machines |
| 197,465 | Nov. 27, 1877 | R.E. Gleason | Improvement in log-turners | sawmill accessories |
| 202,136 | Apr. 09, 1878 | A.E. Barthel | Combined Gun-Tool and Whistle | combination tools |
| 202,197 | Apr. 09, 1878 | B.M. Sherman | Improvement in lifting-jacks | wagon and cart jacks |
| 209,472 | Oct. 29, 1878 | W. Goldie | Shingle-cutting machine | shingle machines |
| 211,516 | Jan. 21, 1879 | J.H. Lewis | Improvement in Bench Planes | |
| 211,790 | Jan. 28, 1879 | G.W. Rodebaugh | Improvement in saw-mill dogs | sawmill dogs |
| 213,103 | Mar. 11, 1879 | W. Goldie | Shingle-cutting machine | shingle machines |
| 215,379 | May 13, 1879 | H.M. Loud | Improvement in sawing and planing lumber | wood planers |
| 218,005 | Jul. 29, 1879 | J.G. Emery | Improvement in lumber-trimming machines | circular crosscut saws |
| 219,086 | Sep. 02, 1879 | W. Goldie | Improvement in shingle-cutting machines | shingle machines |
| 220,342 | Oct. 07, 1879 | J.W. Cheney | Improvement in Combined Anvil and Vise | anvil vises |
