| Patents Granted on 1931-01-20 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| RE17,933 | Jan. 20, 1931 | E.J. Kearney | Slide-Actuating Mechanism | milling machines |
| D83,121 | Jan. 20, 1931 | H.L. Myers | Design for a bench sander | handheld power sanders |
| 1,789,411 | Jan. 20, 1931 | G.D. Sleeth, H.W. Oster | Portable power-driven threading tool | handheld power tools |
| 1,789,412 | Jan. 20, 1931 | G.D. Sleeth, H.W. Oster | Portable power-driven tool | handheld power tools |
| 1,789,562 | Jan. 20, 1931 | J.H. Penniman, J.G. Collins | Revoluble display stand | |
| 1,789,569 | Jan. 20, 1931 | C.E. Tannewitz | Bandsaw with dust collection | bandsaws |
| 1,789,601 | Jan. 20, 1931 | K.R. Sjogren | Chuck | metal lathe chucks |
| 1,789,720 | Jan. 20, 1931 | P.M. Wood | Conveyer mechanism for washing machines | |
| 1,789,886 | Jan. 20, 1931 | G.D. Sundstrand | Feeding mechanism for machine tools | |
