| Patents for H. A. Richardson |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 23,240 | Mar. 15, 1859 | B. Fitts | Method of operating feed-rollers for planing-machines | wood planers |
| 23,763 | Apr. 26, 1859 | B. Fitts | Method of adjusting knives of rotary cutter-heads for planing wood | cutterheads |
| 44,333 | Sep. 20, 1864 | R.N. Meriam | Cutter arm for Daniels planer | cutterheads |
| 96,718 | Nov. 09, 1869 | R.N. Meriam | Improved belt-tightener | woodworking power transmission |
| 97,950 | Dec. 14, 1869 | R.N. Meriam | Improvement in gages for circular-saw tables | tablesaw accessories |
| 98,396 | Dec. 28, 1869 | R.N. Meriam | Improvement in cutter-heads | cutterheads |
