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| Patents Granted on 1984-09-18 | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,471,580 | Sep. 18, 1984 | E.G. Robillard | Wheel Wear Compensation Control for Grinding Machine Feed Cycle | grinding machines | |
| 4,471,673 | Sep. 18, 1984 | R.K. Rosenquist | Sharpening apparatus for circular saw blades | cutter grinding | |
| 4,472,783 | Sep. 18, 1984 | J.E. Kurtzhaltz, R. Johnstone | Flexible Manufacturing System | numerically controlled milling machines | |