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| Patents Granted on 1991-02-05 | |||||
| Number | Date | Patentee | Title | Type | |
| 4,989,479 | Feb. 05, 1991 | R.C. White, A.D. Anderson | Plier Jaws | pliers | |
| 4,990,037 | Feb. 05, 1991 | D.S. Strait | Portable Boring Machine | portable metal boring and drilling machines | |