| Patents Granted on 1931-01-06 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 1,787,432 | Jan. 06, 1931 | D.S. Beattie | Operating Mechanism for Injectors | water injectors |
| 1,787,787 | Jan. 06, 1931 | W.C. Kress | Pipe Vise | pipe and chain vises |
| 1,787,802 | Jan. 06, 1931 | A. Thibault | Hedge trimmer | handheld power tools |
| 1,787,932 | Jan. 06, 1931 | A.F. Breitenstein | Floating Tool Holder | tap and die holders |
| 1,788,046 | Jan. 06, 1931 | C. Booth, G.W. Binns | Roll-End Grinder | grinding machines |
| 1,788,133 | Jan. 06, 1931 | C.J. Travers | Supporting base | |
| 1,788,163 | Jan. 06, 1931 | D.C. Klausmeyer | Index for Machine Tools | metalworking machine mechanisms |
| 1,788,268 | Jan. 06, 1931 | J.E. Anderson | Ejector for taper-shank cutting tools | drill presses |
