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| Patents Granted on 1987-02-17 | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,642,943 | Feb. 17, 1987 | J.R. Taylor, Jr. | Belt abrading apparatus and method | metal sanding machines | |
| 4,643,037 | Feb. 17, 1987 | C.J. Kis | Gear Change Mechanism | metalworking speed changing mechanisms | |
| 4,643,622 | Feb. 17, 1987 | D.A. Winski | Automatic C-Axis Feedrate Control for Machine Tools | computer apparatus and systems | |