| Patents for none listed |
Patents 1231 -
1245
of 3266
      |
| Number | Date | Patentee | Title | Type |
| DE-537,169 | Oct. 30, 1931 | n. listed | Device for Feeding and Removing the Workpieces on Centerless Grinding Machines | centerless grinders |
| 1,830,033 | Nov. 03, 1931 | J.V. Larson | Automatic Nut Wrench | self-adjust wrenches |
| 1,830,424 | Nov. 03, 1931 | E.J. Codner | Lubricator for Pumps | tool lubricators |
| 1,830,577 | Nov. 03, 1931 | C. Vallone | Holder for Wrenches and the Like | wrench set holders |
| 1,830,663 | Nov. 03, 1931 | J.A. Anderson, A.E. Keating | Hatchet, Hammer, or Similar Tool | hatchets |
| 1,832,011 | Nov. 17, 1931 | F.D. Dickas, A.C. Getz | Clutch Mechanism for Lathe Carriages | engine lathes |
| 1,833,759 | Nov. 24, 1931 | H.M. Rinehart | Animal Restraining Device | animal restraining devices |
| 1,833,828 | Nov. 24, 1931 | J.N. Deibert, Jr. | Dehorning Saw | dehorning saws |
| DE-539,537 | Nov. 27, 1931 | n. listed | Centerless Grinding Machine | centerless grinders |
| FR-39,600 | Nov. 30, 1931 | n. listed | Improvements to Grinding Machines | grinding machines |
| GB-362,868 | Dec. 08, 1931 | n. listed | Improvements in or Relating to Centerless Grinding Machines | grinding machines |
| 1,835,842 | Dec. 08, 1931 | G.H. Benzon, Jr. | Feed Mechanism | metal planers |
| 1,836,741 | Dec. 15, 1931 | W. Anderson | Filing Machine | filing machines |
| GB-363,650 | Dec. 22, 1931 | n. listed | Improvements in or Relating to Centreless Grinding Machines | grinding machines |
| 1,838,254 | Dec. 29, 1931 | J.P. Fleming | Socket Wrench Set | wrench set holders |
