| Patents Granted on 1900-??-?? |
Patents 256 -
270
of 1030
      |
| Number | Date | Patentee | Title | Type |
| 645,554 | Mar. 20, 1900 | F. Diehl | Planer attachment | wood planers |
| 645,576 | Mar. 20, 1900 | N. Tesla | System of transmission of electrical energy | |
| 645,577 | Mar. 20, 1900 | J.R. Thomas, H.S. Spencer | Planing-machine | wood planers |
| 645,578 | Mar. 20, 1900 | J.R. Thomas | Abrading-machine | sanding machines |
| 645,601 | Mar. 20, 1900 | H. Mayers | Wood Turning Machine | tenoning machines |
| 645,607 | Mar. 20, 1900 | C.E. Sandstrom | Rip-saw for molding machines | molders |
| 645,630 | Mar. 20, 1900 | R.A. Schultz, C.L. Schultz | Traction Engine | internal combustion traction engines |
| 645,665 | Mar. 20, 1900 | H.B. Hartford | Wrench | pipe wrenches |
| 645,717 | Mar. 20, 1900 | E.J. Fletcher | Abrading-machine | belt sanders |
| 645,838 | Mar. 20, 1900 | F. Spalding | Micrometer Gage | micrometers |
| 645,862 | Mar. 20, 1900 | J.M. Letson, F.W. Burpee | Fish-cutting machine | canning apparatus |
| GB-189,910,593 | Mar. 24, 1900 | F.J. Gresham, J. Gresham | Improvements in Injectors | water injectors |
| D32,390 | Mar. 27, 1900 | G.F. Conner | Design for a Level | metallic levels |
| D32,401 | Mar. 27, 1900 | G.F. Connor | Wrench | wrench jaw components |
| CA-66,782 | Mar. 27, 1900 | C. Miller | Rotary Steam Engine | rotary steam engines |
