| Patents Granted on 1983-03-?? |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 4,375,128 | Mar. 01, 1983 | W. Linquist | Manual keyway punching tool | metal punches |
| 4,375,174 | Mar. 01, 1983 | S.E. Shanley, Jr. | Adjustable End Wrench Releasable Locking Feature | screw adjust wrenches |
| 4,376,970 | Mar. 15, 1983 | R.W. Caddell, K.A. Ilseman | High Speed Digital Position Monitoring System | machine tool controls |
| 4,377,096 | Mar. 22, 1983 | H. Allen | Cork extractor | self and partial cork pullers |
| 4,378,116 | Mar. 29, 1983 | E. Rubik | Spatial logical toy | toys |
| 4,378,117 | Mar. 29, 1983 | E. Rubik | Spatial logical toy | toys |
