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| Patents for Witold C. Przygocki | |||||
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| Number | Title | Classification(s) | |||
| 3,665,650 | Abrasive belt control apparatus and method | 451/1, 451/297, 451/304 | |||
| 4,021,970 | Wide abrasive belt tension and oscillation assembly | 451/311, D25/22 | |||