| Patents Granted on 1920-??-?? |
Patents 1 -
15
of 498
      |
| Number | Date | Patentee | Title | Type |
| 1,327,007 | Jan. 06, 1920 | G.A. Anderson | Cutter-head | pipe threading machines |
| 1,327,008 | Jan. 06, 1920 | G.A. Anderson | Cutter-head | pipe threading machines |
| 1,327,155 | Jan. 06, 1920 | C. Gottschalk | Scraper | scrapers |
| 1,327,160 | Jan. 06, 1920 | J. Hurtig | Electrically-driven spindle | electric motors |
| 1,327,296 | Jan. 06, 1920 | P.A. Solem | Traction-block | woodworking machine stockfeeding mechanisms |
| 1,327,309 | Jan. 06, 1920 | G.W. Bufford | Chain Pipe Wrench | chain and strap wrenches |
| 1,327,356 | Jan. 06, 1920 | S.W. Putnam, 3d | Tailstock-clamping mechanism | metal lathes |
| 1,327,410 | Jan. 06, 1920 | E. Simeone | Turning Tool | leatherworking tools |
| 1,327,506 | Jan. 06, 1920 | M. Walker | Magnetic clutch | industrial machine clutches |
| 1,327,561 | Jan. 06, 1920 | A.E. Johnson | Tool Holder | metal shaper tool holders |
| 1,327,604 | Jan. 06, 1920 | A.C. Booth | Vertically-adjustable engine-lathe | metal lathes |
| GB-137,182 | Jan. 08, 1920 | W.B. Haigh | Turret-head hollow-chisel and chain-cutter mortiser | mortising machines |
| RE14,791 | Jan. 13, 1920 | B. Watts | Pipe Wrench | quick adjust wrenches |
| CA-196,083 | Jan. 13, 1920 | R. Richardson | Hoop forming machine | hoop making machines |
| 1,327,627 | Jan. 13, 1920 | J. Moscini | Paper-match machine | match making machines |
