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| Patents Granted on 1980-09-23 | |||||
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| Number | Date | Patentee | Title | Type | |
| D257,042 | Sep. 23, 1980 | E.R. Lohneis, F. Zankl, C.B. Stevens, T.J. Green | Machine tool | milling machines | |
| CA-1,086,043 | Sep. 23, 1980 | R.B. Clegg, R. Johnstone | Machine tool with common drive for worktable and pallet shuttle | workpiece changers and storage mechanisms | |
| 4,223,879 | Sep. 23, 1980 | W.G. Kuban, I.E. Wolfe | Machine tool vise | metalworking machine vises | |