| Patents Granted on 1890-04-08 |
Patents 1 -
15
of 18
      |
| Number | Date | Patentee | Title | Type |
| 424,977 | Apr. 08, 1890 | F.K. Rand, R. Hakewessel | Bevel Protractor | protractors |
| 424,979 | Apr. 08, 1890 | J. Hartness | Screw Machine Tool | screw machines |
| 424,988 | Apr. 08, 1890 | E.E. Josef | Clamp for Molders Flasks | patternmaker |
| 424,998 | Apr. 08, 1890 | N.H. Roberts | Saw Jointer and Gage | saw gauges |
| 425,105 | Apr. 08, 1890 | R. McChesney | Guide for band-saws | bandsaw guides |
| 425,116 | Apr. 08, 1890 | A.T. Griggs, J.R. Valentine | Gas Engine | gas and gasoline engines |
| 425,119 | Apr. 08, 1890 | R.W. Aitken | Connecting Rod | traction engine connecting rods |
| 425,157 | Apr. 08, 1890 | L.C. Wilcox | Machine for Bending Rods for Bit Braces | making braces |
| 425,158 | Apr. 08, 1890 | J.P. Batchelor | Saw-mill dog | sawmill dogs |
| 425,186 | Apr. 08, 1890 | G.J. Ridley | Grinding-machine | sharpening machines |
| 425,208 | Apr. 08, 1890 | G. Carlyle | Calipers | calipers |
| 425,219 | Apr. 08, 1890 | N.T. Greene | Exhaust-valve-gear for engines | steam engine valve gear |
| 425,230 | Apr. 08, 1890 | A.B. Landis | Grinding-machine | grinders |
| 425,272 | Apr. 08, 1890 | D.D. Tompkins | Self Oiling Pulley | industrial machine pulleys and belt drive mechanisms |
| 425,279 | Apr. 08, 1890 | L.E. Whiton | Scroll chuck jaws for metal lathes | metal lathe chucks |
