| Patents Granted on 1900-??-?? |
Patents 211 -
225
of 1030
      |
| Number | Date | Patentee | Title | Type |
| 644,279 | Feb. 27, 1900 | F. Harrington, E.M. Couch | FeedAttachment for Screw or Analogous Machines | screw machines |
| 644,285 | Feb. 27, 1900 | A. Ek | Machine for pointing pickets | stick pointing machines |
| 644,295 | Feb. 27, 1900 | W.F. Dial, J.G. Lepper | Vapor or Gas Engine | gas and gasoline engines |
| 644,310 | Feb. 27, 1900 | F. Harrington, L.C. Woerner | Multiple Spindle Screw Machine | screw machines |
| 644,332 | Feb. 27, 1900 | G.S. Cook, H. Sauls | Hub Wrench | axle nut wrenches |
| 644,430 | Feb. 27, 1900 | W. Johnson | Center Gage | center marking gauges |
| 644,439 | Feb. 27, 1900 | J.A. Mosher | Acetylene Gas Generator | acetylene gas generators |
| 644,514 | Feb. 27, 1900 | S. Harrington | Cutter-head | cutterheads |
| 644,566 | Mar. 06, 1900 | B.M. Aslakson | Internal Combustion Engine | oil engines |
| 644,589 | Mar. 06, 1900 | F.W. Förster | Foot Power Hammer | drop hammers |
| 644,591 | Mar. 06, 1900 | W.P. Freeman | Electric drill, &c. | drill presses |
| 644,598 | Mar. 06, 1900 | C.O. Heggem | Motor Vehicle | automobiles |
| 644,610 | Mar. 06, 1900 | I.W. Knight, R. Knight | Traction Engine | traction engine steering apparatus |
| 644,675 | Mar. 06, 1900 | J.T. Ludlow | Rope-tramway system | material handling |
| 644,676 | Mar. 06, 1900 | H. Lund | Cylinder Wrench | cylinder tooth wrenches |
