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| Patents Granted on 1977-12-27 | |||||
| Number | Date | Patentee | Title | Type | |
| CA-1,023,427 | Dec. 27, 1977 | E.E. Kirkham, J.J. Schachte, F. Zankl, R.E. Stobbe | A.C. motor control apparatus and method | motor controls | |
| 4,065,249 | Dec. 27, 1977 | J.W. Nelson | Heater for billets | ||