| Patents Granted on 1931-12-29 |
Patents 1 -
15
of 15
      |
| Number | Date | Patentee | Title | Type |
| 1,838,119 | Dec. 29, 1931 | E.J. Svenson | Machine tool | |
| 1,838,164 | Dec. 29, 1931 | C.E. Tannewitz | Band saw wheel and tire therefor | bandsaws |
| 1,838,254 | Dec. 29, 1931 | J.P. Fleming | Socket Wrench Set | wrench set holders |
| 1,838,470 | Dec. 29, 1931 | F.J. Vlchek | Manufacture of Swaged and Tempered Articles | metalworking machines |
| 1,838,532 | Dec. 29, 1931 | F.L. Creager | Apparatus for Heat Treating | heat treating machines |
| 1,838,555 | Dec. 29, 1931 | E.J. Kearney | Fluid Circulating System for Machine Tools | milling machines |
| 1,838,659 | Dec. 29, 1931 | F.J. Clemens | Pipe Wrench | pipe wrenches |
| 1,838,692 | Dec. 29, 1931 | J.E. Lovely | Driving Fixture | jigs and fixtures |
| 1,838,816 | Dec. 29, 1931 | R.P. Stocking, E.L. Fickett | Milling Machine for Locomotive Driving Boxes | milling machines |
| 1,838,945 | Dec. 29, 1931 | A.M. Johnson | Automatic machine tool | nut or bolt making machines |
| 1,838,948 | Dec. 29, 1931 | W.B. Grueter, R.E. Langill | Sawmill dog | sawmill dogs |
| 1,838,957 | Dec. 29, 1931 | J. Orawiec | Wrench | wrenches |
| 1,838,995 | Dec. 29, 1931 | W.M. Fairbairn, A.M. Johnson | Spindle feed mechanism for machine tools | nut or bolt making machines |
| 1,839,095 | Dec. 29, 1931 | E.F. Goetz | Detachable contact | motor controls |
| 1,839,139 | Dec. 29, 1931 | R.H. Brockman | Lathe Tool Holder | lathe tool holders and tool posts |
