| Patents Granted on 1920-02-?? |
Patents 1 -
15
of 43
      |
| Number | Date | Patentee | Title | Type |
| CA-196,921 | Feb. 03, 1920 | R.L. Carter | Centering gauge | |
| 1,329,423 | Feb. 03, 1920 | T.W. McMiken | Saw Filer and Gummer | saw sharpening tools |
| 1,329,456 | Feb. 03, 1920 | T.Z. Carpenter | Gage | measurement gauges |
| 1,329,532 | Feb. 03, 1920 | J.F. Lincoln | Arc Welder Apparatus | welding machines |
| 1,329,559 | Feb. 03, 1920 | N. Tesla | Valvular conduit | |
| 1,329,571 | Feb. 03, 1920 | A.G. Adair | Nut Turning Tool | pneumatic tools |
| 1,329,707 | Feb. 03, 1920 | E.J. Hansen | Combination Tool | can and jar openers |
| 1,329,726 | Feb. 03, 1920 | W.T. Sears | Counterbalancing mechanism for drilling-machines | radial drill presses |
| 1,329,729 | Feb. 03, 1920 | J. Swartz | Measuring Instrument | indicating calipers |
| 1,329,780 | Feb. 03, 1920 | J. Lebovici | Power-transmitting apparatus | |
| 1,329,857 | Feb. 03, 1920 | R. Rosner | Milling and Grinding Tool Holder | sharpening tool holders |
| 1,329,911 | Feb. 03, 1920 | M. Lenti | Gage | indicating calipers |
| 1,329,970 | Feb. 03, 1920 | H.J. Hauser | Drill-jig | drill and tap guides |
| D54,394 | Feb. 10, 1920 | M.R. Dodge | Tool | firehose and hydrant wrenches |
| D54,461 | Feb. 10, 1920 | W.F. Scheffler | Combined Wrench and Spring-Leaf Oiler | wrench combination tools |
