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| Patents Granted on 1981-07-?? | |||||
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| Number | Title | Classification(s) | |||
| 4,276,799 | Power tool apparatus | 83/473, 83/477.1, 83/477.2, D15/141 | |||
| 4,277,206 | Adjustable Chip Breaker for a Cutting Tool | 407/3, 407/5, 82/152 | |||
| 4,277,990 | Ratchet wrench | 81/63 | |||
| 4,277,998 | Wood member cutting apparatus | 83/404.1, 83/425.2, 83/432, 83/433, 83/435.2 | |||
| 4,279,282 | Barrel Hoop Drivers | 147/9 | |||
| 4,280,265 | Pliers | 29/229, 81/302, 81/385, 81/387 | |||
| 4,280,379 | Reversible Ratchet Wrench | 192/43.1, 81/62 | |||