| Patents Granted on 1920-04-06 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 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 |
| 1,336,171 | Apr. 06, 1920 | R.A. Trace | Means for forming oil-cakes | seed or nut oil apparatus |
| 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 |
