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| Patents Granted on 1983-03-?? | |||||
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| Number | Date | Patentee | Title | Type | |
| 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 | |