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| Patents Granted on 1980-02-12 | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,187,612 | Feb. 12, 1980 | I.M. Scott | Height Gage | ||
| 4,187,645 | Feb. 12, 1980 | F.W. Lind | Reactive system for accommodating belt stretch and tracking | belt sanders | |