| Patents Granted on 1931-03-17 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 1,796,352 | Mar. 17, 1931 | S.C. Watson | Automatic Tapping Head | tapping heads and chucks |
| 1,796,369 | Mar. 17, 1931 | J.E. Hirst | Support and slide for endless feed chains of sawing machines and the like | woodworking machine stockfeeding mechanisms |
| 1,796,790 | Mar. 17, 1931 | E.S. Ingraham | Attachment for automatic screw machines | |
| 1,796,812 | Mar. 17, 1931 | U.F. Steindorff, H.J. Heller | Shears | metal shearing machines |
| 1,796,842 | Mar. 17, 1931 | E.A. Hall | Cylinder Hone | honing tools |
| 1,796,923 | Mar. 17, 1931 | V.S. Firestone, D. Sward | Latch | |
| 1,796,979 | Mar. 17, 1931 | G.A. Bells | Gauge for adjusting automobile steering | vehicle mechanic |
| 1,797,121 | Mar. 17, 1931 | F.J. Bohn | Micrometer Gage for Internal Threads | micrometers |
| 1,797,139 | Mar. 17, 1931 | G. Gorton | Engraving Machine and the Like | metal engraving machines |
