| Patents Granted on 1931-03-31 |
Patents 1 -
10
of 10
      |
| Number | Date | Patentee | Title | Type |
| 1,798,194 | Mar. 31, 1931 | J.H. Dodge | Reversible Ratchet Wrench | ratchet wrenches |
| 1,798,206 | Mar. 31, 1931 | W.D. Johnson | Chip breaker | wood planers |
| 1,798,234 | Mar. 31, 1931 | H.M. Toppin | Key holder for tools | handheld power tool accessories |
| 1,798,457 | Mar. 31, 1931 | J.D. Cole | Deodorizing unit | |
| 1,798,481 | Mar. 31, 1931 | N.F. McNaught, E.H. Peterson | Ratchet lever | ratchet wrenches |
| 1,798,482 | Mar. 31, 1931 | N.F. McNaught, E.H. Peterson | Ratchet lever | |
| 1,798,496 | Mar. 31, 1931 | J. Reid | Lubricating Eccentric Driving Gears | lubricators |
| 1,798,512 | Mar. 31, 1931 | O.W. Young | Wood shaping and finishing machine | wood shapers |
| 1,798,570 | Mar. 31, 1931 | G.C. Wahl | Feeder for woodworking machines | woodworking machine stockfeeding mechanisms |
| 1,799,120 | Mar. 31, 1931 | C. Philbrick | Knife-clamping device for cutter heads | cutterheads |
