| Patents Granted on 1890-05-20 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 428,191 | May 20, 1890 | T.H. Harrison, F.A. Welles | Beam Compass | compasses |
| 428,193 | May 20, 1890 | G.B. Widdifield | Improvements in Combined Calipers and Balance-Wheel Truing-Pliers | pliers |
| 428,360 | May 20, 1890 | J. Wilkinson | Tool Attachment for Planners | |
| 428,396 | May 20, 1890 | S.H. Jennings | Russell Jennings Auger Bit Box | tool storage |
| 428,416 | May 20, 1890 | J.M. Riley | Shaping Machine | |
| 428,426 | May 20, 1890 | J.H. Storey, H.J. Bamford | Machine for grinding twist or other drills | sharpening machines |
| 428,516 | May 20, 1890 | A.R. Paulus | Railway Track Drill | rail drilling machines |
| 428,518 | May 20, 1890 | P. Payette | Saw-mill dog | sawmill dogs |
| 428,520 | May 20, 1890 | E.J. Pennington | Split pulley | industrial machine pulleys and belt drive mechanisms |
