| Patents Granted on 1931-09-08 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 1,822,070 | Sep. 08, 1931 | C. Vallone | Holder for Tools or Implements | tool holders |
| 1,822,337 | Sep. 08, 1931 | J.E. Caster | Grinding Machinery | grinding machines |
| 1,822,348 | Sep. 08, 1931 | C.W. Hopkins | Grinding Machine | grinding machines |
| 1,822,413 | Sep. 08, 1931 | W.E. Favini, A.D. Mizzy | Micrometer | micrometers |
| 1,822,428 | Sep. 08, 1931 | J. Zilliox | Wrench | nut wrenches |
| 1,822,520 | Sep. 08, 1931 | C.H. Fox | Double-Jointed Levercap | plane lever caps |
| 1,822,697 | Sep. 08, 1931 | P.R. Hahnemann | Sheet-metal working machine | beading machines |
| 1,822,745 | Sep. 08, 1931 | H.W. Porter | Cutting tool | bolt cutters |
