| Patents Granted on 1920-04-__ |
Patents 1 -
15
of 52
      |
| Number | Date | Patentee | Title | Type |
| GB-140,562 | Apr. 01, 1920 | W.A. Pearn | Improvements in machine tools for drilling or cutting out templets | horizontal boring mills |
| GB-140,722 | Apr. 01, 1920 | A. Herbert, A.H. Lloyd | Improvements in Built-up Cutters for Use in Milling Machines or Other Machine Tools | milling machine tools |
| 1,335,721 | Apr. 06, 1920 | O. Bergstrom | Heavy squaring-clamp | clamps |
| 1,335,728 | Apr. 06, 1920 | W.F. Folmer | Photographic Camera | cameras |
| 1,335,736 | Apr. 06, 1920 | G.E. Jackson | Belt-shifter | industrial machine pulleys and belt drive mechanisms |
| 1,336,083 | Apr. 06, 1920 | H.L. Kranz | Pocket Tool Holder | tool holders |
| 1,336,126 | Apr. 06, 1920 | G.A. Carlson | Can Opener | can and jar openers |
| 1,336,155 | Apr. 06, 1920 | L.Q. Presby | Tool Holder | lathe tool holders and tool posts |
| 1,336,189 | Apr. 06, 1920 | A. Bechler | Gauge for Screw Threads | special purpose gauges |
| 1,336,209 | Apr. 06, 1920 | C.H. Driver | Saw-blade | hacksaws |
| 1,336,443 | Apr. 13, 1920 | W.C. Reinhardt, O.H. Banker | Portable rail-hacksaw | power hacksaws |
| 1,336,466 | Apr. 13, 1920 | J.M. Lamb | Tool Holder or Tool | drilling and boring tool holders |
| 1,336,754 | Apr. 13, 1920 | R. Parmelee | Vise | pipe and chain vises |
| 1,336,755 | Apr. 13, 1920 | R. Parmelee | Vise | pipe and chain vises |
| 1,336,794 | Apr. 13, 1920 | S. Stepanian | Grease Cup Wrench | wrenches |
