| Patents for none listed |
Patents 331 -
345
of 3199
      |
| Number | Date | Patentee | Title | Type |
| 1,251,665 | Jan. 01, 1918 | L. Hirsh | Electric Riveting Tool | rivet making machines |
| 1,251,712 | Jan. 01, 1918 | J.S. Wakimoto | Chalk Line Holder & Reel | |
| 1,251,905 | Jan. 01, 1918 | M.R. Martin | Grinding Disc or Bur | |
| 1,252,009 | Jan. 01, 1918 | F.O. Jaques, Sr. | Micrometer Caliper Thimble | micrometers |
| 1,252,105 | Jan. 01, 1918 | K.G. Gustafson | Crosscut Saw Handle | saw handles |
| 1,252,136 | Jan. 01, 1918 | J.E. Micthell | Machine for Cutting Pieced Lifts and for Building Logs or Heel Blanks Therefrom | cobbler |
| 1,252,162 | Jan. 01, 1918 | E. Bahnik, J. Pauer | Grinding Machine | |
| 1,252,316 | Jan. 01, 1918 | H.W. Bascom | Knife Cleaner | cutler |
| 1,252,335 | Jan. 01, 1918 | R.E. Foote | Tapered Sleeve | drilling and boring tool holders |
| 1,252,424 | Jan. 08, 1918 | H.C. Gamage | Hacksaw | hacksaws |
| 1,252,612 | Jan. 08, 1918 | R.W. Perry | Sharpening Device | |
| 1,252,638 | Jan. 08, 1918 | F.X. Wiedman | Adjustable Clamp | hand screws |
| 1,253,511 | Jan. 15, 1918 | J.C. Moler | Coal Drill Socket Retaining Apparatus | |
| 1,253,966 | Jan. 15, 1918 | F.W. Harris | Process and Apparatus for Treating Drill Pipe | oilfield machinery |
| 1,254,157 | Jan. 22, 1918 | C. Perkins | Machine for Use in the Manufacture of Nails | nail making machines |
