| Patents Granted on 1890-08-19 |
Patents 1 -
15
of 47
      |
| Number | Date | Patentee | Title | Type |
| 434,424 | Aug. 19, 1890 | A.W. Cash | Pipe Threading and Cutting Off Machine | pipe threading machines |
| 434,447 | Aug. 19, 1890 | W.R. Hunter | Mechanical Motor | human powered apparatus |
| 434,460 | Aug. 19, 1890 | C.T. Pratt | Drill-chuck | drill press chucks |
| 434,465 | Aug. 19, 1890 | C.W. Reeves | Instrument for Drawing Irregular Curves, Ellipses, &c. | compasses |
| 434,487 | Aug. 19, 1890 | A.T. Tietz | Clamp | clamps |
| 434,488 | Aug. 19, 1890 | E. Thomson | Electric Power Trasmission | electric distribution systems |
| 434,489 | Aug. 19, 1890 | E. Thomson | Electric Power System | electric distribution systems |
| 434,497 | Aug. 19, 1890 | J. Baird | Steam Engine | steam engines |
| 434,530 | Aug. 19, 1890 | E. Thomson | Process of and Apparatus for Forming and Welding Metals by Electricity | welding apparatus |
| 434,531 | Aug. 19, 1890 | E. Thomson | Induction Discharge Protector for Welding Appatatus | welding apparatus |
| 434,532 | Aug. 19, 1890 | E. Thomson | Process of Electric Welding | welding |
| 434,541 | Aug. 19, 1890 | J. Ernst | Vise | bench vises |
| 434,557 | Aug. 19, 1890 | R. Eickemeyer | Volt or Ampere meter | electrical measuring apparatus |
| 434,558 | Aug. 19, 1890 | R. Eickemeyer | Device for measuring the intensity of magnetic currents | |
| 434,560 | Aug. 19, 1890 | H.M. Nester, D.H. Fridley | Blacksmith's Buttres | blacksmith |
