| Patents for Ralph S. Greenlee |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 199,285 | Jan. 15, 1878 | R.L. Greenlee, R.S. Greenlee | Improvement in mortising and boring machines | drilling and boring |
| 283,341 | Aug. 14, 1883 | R.S. Greenlee | Hollow-chisel mortising machine | mortising machines |
| 326,640 | Sep. 22, 1885 | R.L. Greenlee, R.S. Greenlee | Machine-table | tablesaws |
| 377,749 | Feb. 14, 1888 | R.S. Greenlee | Mortising machine | mortising machines |
| 418,978 | Jan. 07, 1890 | R.L. Greenlee, R.S. Greenlee | Mortising-machine | mortising machines |
| 454,730 | Jun. 23, 1891 | R.S. Greenlee, E.G. Strom | Forming and sanding door panels | sanding machines |
